Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónCN104929527 A
Tipo de publicaciónSolicitud
Número de solicitudCN 201510292176
Fecha de publicación23 Sep 2015
Fecha de presentación29 May 2015
Fecha de prioridad29 May 2015
También publicado comoCN104929527B
Número de publicación201510292176.3, CN 104929527 A, CN 104929527A, CN 201510292176, CN-A-104929527, CN104929527 A, CN104929527A, CN201510292176, CN201510292176.3
Inventores高元琴
Solicitante高元琴
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos:  SIPO, Espacenet
Drill bit with diamond compacts
CN 104929527 A
Resumen
The invention discloses a drill bit with diamond compacts. The drill bit comprises a bit matrix and the diamond compacts. The diamond compacts are welded on the bit matrix. The operating end of the bit matrix is peripherally and integrally provided with a plurality of supports; each support is provided with a cavity in which one diamond compact is disposed; the diamond compacts are 1mm to 5mm higher than the top of the supports. The bit matrix is internally provided with a plurality of first heat tubes as many as the supports and corresponding to the same in position. The top of each first heat tube extends into the corresponding support. The center of the bit matrix is provided with a second heat tube. The lower end of the second heat tube is thicker than tis upper end. One end, close to the operating end, of each of the first and second heat tubes is provided with an evaporating segment, and the other end thereof is provided with a condensing segment. The wall of each of the first and second heat tubes is provided with an absorbent core; the first and second heat tubes are filled with medium and sealed by end covers. The drill bit can be cooled better.
Reclamaciones(4)  traducido del chino
1. 一种具有金刚石复合片的钻头,包括钻头基体(1)和金刚石复合片(2),所述金刚石复合片(2)焊接在钻头基体(1)上,其特征是钻头基体(1)的工作端沿圆周方向一体设置有若干支撑体(3),支撑体(3)上设置有凹槽(4),凹槽(4)内设有所述金刚石复合片(2),所述金刚石复合片(2)高于支撑体(3)顶部;所述钻头基体(1)内具有若干第一热管(5),所述第一热管(5)数量与支撑体(3)相同且位置与支撑体(3)相对应;所述第一热管(5)顶部伸入所述支撑体(3);在钻头基体(1)中心处设有第二热管(6);所述第二热管(6) 下端粗于其上端;第一热管(5)和第二热管(6)靠近工作端的一端为蒸发段(7)、另一端为冷凝段(8);在第一热管(5)和第二热管(6)的管壁上设有吸液芯(9),在第一热管(5)和第二热管(6)注入有工质(11)并被端盖(10)密封;在吸液芯(9)的作用下工质(11)进入到蒸发段(7),具有金刚石复合片的钻头使用时,靠近工作端的工质(11)温度升高汽化,在压差作用下汽化的工质(11)流向热管的冷凝段(8),在冷凝段(8)凝结成液体并向外界释放出热量,这些位于冷凝段(8)的液体工质(11)在吸液芯(9)毛细抽吸力的作用下返回到蒸发段(7 ),并再次受热汽化,如此反复循环以实现具有金刚石复合片的钻头的降温。 A drill bit having a diamond composite sheet, including the shank (1) and PDC (2), the PDC (2) welded to the shank (1), characterized in that the shank (1) The working end in the circumferential direction is provided with a plurality of integrally supporting body (3), the support member (3) is provided with grooves (4), the recess (4) is provided with said diamond composite sheet (2), said diamond composite sheet (2) is higher than the supporting body (3) at the top; a first heat pipe having a plurality of (5) (1) of the shank, (3) the same as the first heat pipe (5) and the number and position of the support a support member (3) corresponds to; the first heat pipe (5) extending into the top of the support member (3); in the shank (1) is provided at the center of the second heat pipe (6); the second heat pipe ( 6) the upper end of the lower crude thereon; a first heat pipe (5) and the second heat pipe (6) near the end of the working end of the evaporator (7) and the other end of the condenser section (8); (5) and the second in the first heat pipe with a wick (9) second heat pipe (6) of the wall, in the first heat pipe (5) and the second heat pipe (6) is injected into the working fluid (11) and cap (10) sealed; suction liquid core (9) of the substance under Patch (11) into the evaporator section (7) having a PDC drill bits when used near the working end of the working fluid (11) temperature vaporization, vaporization under pressure effect the working fluid (11) to the heat pipe condenser section (8), in the condensation section (8) condenses into a liquid releasing heat to the outside world, which is located in the condenser section (8) of the liquid medium (11) in the absorbent core (9 ) under the effect of capillary suction force returns to the evaporator section (7), and the heat of vaporization again, so repeated cycles to achieve cooling the drill bit having a diamond composite sheet.
2. 根据权利要求1所述的具有金刚石复合片的钻头,其特征是所述钻头基体(1)由钴、 铁、镍、钨、铜、锡、Cu-Re合金、YG8、Mn组成,各组份的重量份为:钴30份、铁5份、镍2份、 钨2份、铜11份、锡1份、Cu-Re合金32份、YG8 12份、Mn2份。 According to claim drill bit having a diamond composite sheet 1, characterized in that said shank (1) consisting of cobalt, iron, nickel, tungsten, copper, tin, Cu-Re alloy, YG8, Mn composition, each component parts by weight: 30 parts of cobalt, iron, 5 parts, 2 parts of nickel, tungsten 2 parts, 11 parts copper, tin 1, 32 parts Cu-Re alloy, YG8 12 parts, Mn2 parts.
3. 根据权利要求1或2所述的具有金刚石复合片的钻头,其特征是金刚石复合片(2) 焊接在钻头基体(1)上的步骤如下: 采用体积浓度为99. 5%的无水乙醇对金刚石复合片(2)以及钻头基体(1)的焊接面进行清洗; 在钻头基体(1)焊接面上、以及金刚石复合片(2)焊接面上涂抹铜钎焊熔剂,并后将它们置于充满氩气的加热室内升温,加热室内气压保持在〇. 5个标准大气压,将钻头基体(1) 加热到650-652°C,并静置5-10秒钟; 将加热后的钻头基体(1)及金刚石复合片(2)置于高频感应加热焊室内,焊室内温度控制在660-670°C,将铜钎焊料和铜钎焊熔剂加在已处理的金刚石复合片(2)与钻头基体(1)焊接面之间,并采用氧气-乙炔火焰加热焊接,焊接温度为670°C。 3. A drill bit having a diamond composite sheet according to claim 1 or claim 2, characterized in that the diamond composite sheet (2) the step of welding the shank (1) is as follows: The volume concentration of 99.5% in dry Ethanol PDC (2) and the shank (1) of the welding surface cleaning; in the shank (1) welding surface, and PDC (2) welding surface coated copper soldering flux, and after them placed in the heating chamber filled with argon gas temperature, the heating chamber pressure is maintained at 5 billion standard atmospheric pressure, the shank (1) was heated to 650-652 ° C, and allowed to stand for 5-10 seconds;. The drill heated substrate (1) and PDC (2) in high-frequency induction heating welding indoors, welding room temperature control at 660-670 ° C, the copper solder and copper solder flux applied PDC processed ( (1) between the welding surface 2) with the shank, and the use of oxygen - acetylene flame heating welding, soldering temperature of 670 ° C.
4. 根据权利要求3所述的具有金刚石复合片的钻头,其特征是所述铜钎焊料为Cu6-Sn5 或Cu3-Sn0 4. The claim has PDC drill 3, wherein said copper solder as Cu6-Sn5 or Cu3-Sn0
Descripción  traducido del chino
-种具有金刚石复合片的钻头 - Kind of drill bit having PDC

技术领域 TECHNICAL FIELD

[0001] 本发明设及一种钻头,尤其是一种具有金刚石复合片的钻头。 [0001] The present invention A drill is provided and, in particular, is a kind of PDC drill bits.

背景技术 Background technique

[0002] 金刚石复合片PDC任olycrystallineDiamondCompact),其上部为聚晶金刚石薄层,下部为碳化鹤硬质合金基底,金刚石复合片(roc)工具在地质勘探、石油钻井、机械加工等行业应用非常广泛。 [0002] PDC PDC any olycrystallineDiamondCompact), the upper portion of the polycrystalline diamond thin lower crane carbide cemented carbide substrate, PDC (roc) tool in geological exploration, oil drilling, machining and other industries is widely used .

[0003] 具有金刚石复合片的钻头存在的技术问题是;第一散热效果不理想,第二金刚石复合片与钢钻头基体(钻头体)之间多采用粘合剂粘结或氧气与己诀火焰高温焊接。 [0003] The technical problem has PDC drill existence is; a first cooling effect is not ideal, the second diamond composite sheet steel shank use of adhesive bonding or flame between oxygen and had tactic (drill body) high temperature welding. 使用过程中金刚石复合片易产生"脱片"现象,"脱片"是具有金刚石复合片的钻头的主要失效形式,其原因是由于焊接不牢或粘接不牢而引起的。 During use PDC tend to be "off-chip" phenomenon, "off-chip" is the main failure form of a PDC drill bit, which is due to welding is not strong or not strong adhesion caused.

[0004] 由于存在该样的问题,所W有必要对现有的具有金刚石复合片的钻头进行改进。 [0004] Due to this kind of problem, the W it is necessary to have an existing PDC drill bits make improvements.

[0005] [0005]

发明内容 SUMMARY OF THE INVENTION

[0006] 本发明的目的是为了解决上述技术的不足而设计的一种具有自散热性能的具有金刚石复合片的钻头。 [0006] The object of the present invention is a self-cooling performance of the drill bit having a diamond composite sheet in order to solve the problem of these technologies and design.

[0007] 本发明所设计的一种具有金刚石复合片的钻头,包括钻头基体和金刚石复合片, 所述金刚石复合片焊接在钻头基体上,钻头基体的工作端沿圆周方向一体设置有若干支撑体,支撑体上设置有凹槽,凹槽内设有所述金刚石复合片,所述金刚石复合片高于支撑体顶部;所述钻头基体内具有若干第一热管,所述第一热管数量与支撑体相同且位置与支撑体相对应;所述第一热管顶部伸入所述支撑体;在钻头基体中屯、处设有第二热管; 所述第二热管下端粗于其上端;第一热管和第二热管靠近工作端的一端为蒸发段、另一端为冷凝段;在第一热管和第二热管的管壁上设有吸液巧,在第一热管和第二热管注入有工质并被端盖密封;在吸液巧的作用下工质进入到蒸发段,具有金刚石复合片的钻头使用时, 靠近工作端的工质温度升高汽化,在压差作用下汽化的工质流向热管的冷凝段,在冷凝段凝结成液体并向外界释放出热量,该些位于冷凝段的液体工质在吸液巧毛细抽吸力的作用下返回到蒸发段,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温。 [0007] The present invention is designed drill bit having a diamond composite sheet, comprising the shank and the PDC, the PDC is welded to the shank, the working end of the shank in the circumferential direction is integrally provided with a plurality of support , provided with grooves, the grooves are equipped with the PDC, the PDC is higher than support the top body on the support; the drill base body having a plurality of first heat pipe, the number of the first heat pipe support the same body and the position corresponding to the support member; said first heat pipe extending into the top of the support body; in the bit matrix Tun, provided at a second heat pipe; said second heat pipe to its upper end lower crude; first heat pipe and a second heat pipe near the end of the working end of the evaporator, and the other end of the condensation section; aspiration clever features on the first and second heat pipe heat pipe wall, in the first and second heat pipe heat pipe working fluid is injected into and cap seal; when pipetting coincidentally under Patch substance into the evaporator section, having a PDC drill bits used near the working end of the working fluid temperature vaporization under pressure action vaporized working fluid flow heat pipe condensation segment, segment condensation condenses into liquid releases heat to the outside world, which is located some condensed liquid refrigerant section at the capillary suction force pipetting clever action returns to the evaporator, and again heat of vaporization, so repeated cycle W realization cooling the drill bit having PDC.

[0008] 本发明所设计的具有金刚石复合片的钻头,它的有益效果是;钻头寿命长;W金刚石复合片为主切削齿,复合片的耐磨性能是硬质合金的20-40倍W上,使用寿命是普通钻头的3-5倍W上。 [0008] The present invention is designed to drill with a diamond composite sheet, its beneficial effects; long drill life; W-based PDC cutters, carbide wear resistance of the composite sheet W 20-40 times the life is 3-5 times the ordinary bit W. 本发明中,第一热管和第二热管具有循环散热的特性,可W通过工质汽液两态的转化,将钻头工作端产生的高温释放至末端,反复循环W实现具有金刚石复合片的钻头的降温;第一热管与支撑体相对应且顶部伸入所述支撑体,在支撑体处产生的高温更容易被散出,而第一热管顶部伸入所述支撑体使得第一热管更接近工作点W提高散热效果;而位于中部的第二热管则对支撑体之间的中屯、区域进行散热,降低工作面的温度,并且第二热管下端粗于其上端使其冷凝段相对更大,而蒸发段相对更小,该样的结构便于工质在冷凝段的冷凝,也使得工质在蒸发段汽化后更易负压,提高循环散热效果。 The present invention, the first and second heat pipe heat pipe having a circulating cooling features to W by working fluid vapor-liquid two-state conversion of the high temperature generated by the release of the working end of the drill bit to the end, repeated cycles W realization has PDC drill cooling; first heat pipe and the support and the top into said corresponding support, the support body at a high temperature to produce more likely to be shed, and the first heat pipe extending into the top of the support so that the first heat pipe closer W improve the cooling effect of the operating point; while in the middle of the second heat pipe is to support between Tuen area for cooling, reducing the working surface temperature, and a second heat pipe upper end of the lower end of its crude to make relatively larger condenser section while evaporating section is relatively smaller, the kind of structure to facilitate the working fluid in the condensation condensation section, but also makes the working fluid in the evaporator vaporization more negative pressure, improve circulation cooling effect. 该种钻头利用如下原理散热:在吸液巧的作用下工质进入到蒸发段,具有金刚石复合片的钻头使用时,靠近工作端的工质温度升高汽化,在压差作用下汽化的工质流向热管的冷凝段,在冷凝段凝结成液体并向外界释放出热量,该些位于冷凝段的液体工质在吸液巧毛细抽吸力的作用下返回到蒸发段,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温,散热效果更好。 The seed drill using the following principles of heat: when pipetting clever role in getting off mass into the evaporator section, having a PDC drill bits used near the working end of the working fluid temperature vaporized, vaporized working fluid under pressure action flows to the condenser section of the heat pipe, the condenser section condenses into liquid releases heat to the outside, which is located some condensation zone at a liquid working fluid capillary absorbent suction force clever action returns to the evaporator, and vaporized again heated, so W achieve repeated cycles of cooling the drill bit having a diamond composite sheet, the better the cooling effect.

[0009] 本发明进一步的方案是;所述钻头基体由钻、铁、镶、鹤、铜、锡、化-Re合金、YG8、 Mn组成,各组份的重量份为:钻30份、铁5份、镶2份、鹤2份、铜11份、锡1份、化-Re 合金32份、YG8 12份、Mn2份。 A further embodiment of [0009] The present invention is; the shank from the drill, iron, inserts, cranes, copper, tin, -Re alloy, YG8, Mn composition, each component parts by weight: 30 parts of diamond, iron 5 parts, inserts 2 parts, Crane 2 parts, 11 parts copper, tin 1, 32 parts of -Re alloy, YG8 12 parts, Mn2 parts. 其中:化-Re合金为铜基稀±合金,YG8是鹤钻类材料。 Where: -Re alloy of copper-based alloys dilute ±, YG8 a crane drill-like material. 耐磨性良好,使用强度和冲击初性优于YG6,都可从姜堪市维德金属制品厂采购。 Good wear resistance, the use of early strength and impact resistance than YG6, can be purchased from Jiang Vader metallwarenfabrik Kansas City.

[0010] 本发明再进一步的方案是;金刚石复合片焊接在钻头基体上的步骤如下: 采用体积浓度为99. 5%的无水己醇对金刚石复合片W及钻头基体的焊接面进行清洗; 在钻头基体焊接面上、W及金刚石复合片焊接面上涂抹铜纤焊烙剂,并后将它们置于充满氣气的加热室内升温,加热室内气压保持在0.5个标准大气压,将钻头基体加热到650-652 °C,并静置5-10秒钟; 将加热后的钻头基体及金刚石复合片置于高频感应加热焊室内,焊室内温度控制在660-670°C,将铜纤焊料和铜纤焊烙剂加在已处理的金刚石复合片与钻头基体焊接面之间, 并采用氧气-己诀火焰加热焊接,焊接温度为670°C。 [0010] Still further aspect of the present invention; PDC drill welding steps on the substrate as follows: the volume concentration of 99.5% of anhydrous hexanol for PDC drill welding surface W and substrate cleaning; In the welding surface of the shank, W and PDC welding surface coated copper brazing branded agents, and will place them full of gas heated indoor air temperature, the heating chamber pressure is maintained at 0.5 atm, the drill substrate heating to 650-652 ° C, and allowed to stand for 5-10 seconds; the heated substrate and diamond drill composite sheet placed on a high-frequency induction heating welding indoors, welding room temperature control at 660-670 ° C, the solder copper fiber and branded copper brazing agent applied between the PDC has been treated with a shank welding surface, and the use of oxygen - had tactic flame heating welding, soldering temperature of 670 ° C.

[0011] 采用铜纤焊料进行金刚石复合片的焊接,铜纤焊料具有优异的纤焊工艺性和润湿性,界面冶金结合致密,焊后表面光滑,焊接牢固,可有效解决现有技术中脱片的问题,脱片率可下降15%,延长钻头的使用寿命。 [0011] The solder copper fiber PDC welding, solder copper fiber having excellent brazing process and wettability, interfacial metallurgically bonded dense, smooth surface after the welding, welding firm, can effectively solve the prior art off question sheet, off-chip rate can be decreased by 15%, to extend the life of the drill.

[0012] 本发明再进一步的方案是;所述铜纤焊料为化e-Sne或化3-Sn。 [0012] Still further aspect of the present invention; the copper to fiber-based e-Sne solder or of 3-Sn.

[0013] 本发明所设计的具有金刚石复合片的钻头特别适合于地质勘探。 [0013] The present invention is designed to drill with a diamond composite sheet is particularly suitable for geological exploration.

[0014] [0014]

附图说明 Brief Description

[0015] 图1是实施例1具有金刚石复合片的钻头的外观示意图; 图2是实施例1具有金刚石复合片的钻头的纵剖图; 图3是实施例5具有金刚石复合片的钻头的纵剖图; 图中;钻头基体1、金刚石复合片2、支撑体3、凹槽4、第一热管5、第二热管6、蒸发段7、 冷凝段8、端盖10、吸液巧9、工质11。 [0015] FIG. 1 is a schematic view of the appearance of a diamond drill composite sheet of Example 1; Figure 2 is a longitudinal cross-sectional view of a PDC drill in Example 1; Fig. 3 is a longitudinal Example 5 has a PDC drill bit implementation sectional view; FIG; shank 1, PDC 2, the support member 3, the recess 4, a first heat pipe 5, the second heat pipe 6, the evaporator 7, the condensation section 8, the end cap 10, Qiao absorbent 9, the working fluid 11.

[0016] [0016]

具体实施方式 detailed description

[0017] 下面通过实施例结合附图对本发明作进一步的描述。 [0017] The following figures for the present invention will be further described by way of example binding.

[001引实施例1 : 如图1、2所示,本实施例所描述的具有金刚石复合片的钻头,包括钻头基体1和金刚石复合片2,所述金刚石复合片2焊接设日采用银纤焊)在钻头基体1上,钻头基体1的工作端沿圆周方向一体设置有若干支撑体3,支撑体3上设置有凹槽4,凹槽4内设有所述金刚石复合片2,所述金刚石复合片2高于支撑体3顶部1mm;所述钻头基体1内具有若干第一热管5,所述第一热管5数量与支撑体3相同且位置与支撑体3相对应;所述第一热管5顶部伸入所述支撑体3 ;在钻头基体1中屯、处设有第二热管6 ;所述第二热管6下端粗于其上端; 第一热管5和第二热管6靠近工作端的一端为蒸发段7、另一端为冷凝段8 ;在第一热管5 和第二热管6的管壁上设有吸液巧9,在第一热管5和第二热管6注入有工质11并被端盖10密封;在吸液巧9的作用下工质11进入到蒸发段7,具有金刚石复合片的钻头使用时,靠近工作端的工质11温度升高汽化,在压差作用下汽化的工质11流向热管的冷凝段8,在冷凝段8凝结成液体并向外界释放出热量,该些位于冷凝段8的液体工质11在吸液巧9毛细抽吸力的作用下返回到蒸发段7,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温。 [001 cited Example 1: 1 and 2, PDC drill bit having the described embodiment of the present embodiment includes a substrate 1 and the diamond drill composite sheet 2, said diamond composite sheet 2 days welding set with silver fiber welding) on the drill bit base body 1, the working end of the drill bit base body 1 is provided with a circumferential direction a plurality of integrally supporting body 3, is provided on the support member 3 has a groove 4, groove 4 equipped with the diamond composite sheet 2, the PDC 2 higher than the top of the support body 3 1mm; having a plurality of first heat pipe 5 1 wherein the shank, the first heat pipe 5 3 same amount and with the support of the position corresponding to the support body 3; the first heat pipe 5 extends into the top of the supporting body 3; 6 provided with a second heat pipe 1 in the bit matrix village, at; said second heat pipe 6 lower crude upper end thereof; a first heat pipe and second heat pipe 5 near the working end 6 One end of the evaporator 7, the other end is the condensation section 8; aspiration has skillfully 9 in the first heat pipe wall 5 and a second heat pipe 6, in the first heat pipe 5 and the second heat pipe 6 is injected into the working fluid 11 and sealed by the end cap 10; aspiration clever role in getting off quality 11 9 into the evaporator section 7, with PDC drill bits when used near the working end of the working fluid 11 temperature vaporization, vaporization under pressure effect condensation section 11 to the working fluid of the heat pipe 8, in the condensation section 8 condenses into liquid releases heat to the outside world, which is located some condensed liquid refrigerant paragraph 8 of 11 in the aspiration clever 9 capillary suction force action returns to the evaporator paragraph 7, and heated vaporized again, so repeated cycles to achieve cooling W bit having a diamond composite sheet.

[0019] 本实施例所描述的具有金刚石复合片的钻头,它的有益效果是;钻头寿命长;W 金刚石复合片为主切削齿,复合片的耐磨性能是硬质合金的20-40倍W上,使用寿命是普通钻头的3-5倍W上。 [0019] PDC drill bit having the embodiment described, its beneficial effects; long drill life; W-based PDC cutters, the wear resistance of the composite sheet is 20-40 times Carbide on W, service life is 3-5 times the ordinary bit W. 本发明中,第一热管5和第二热管6具有循环散热的特性,可W通过工质11汽液两态的转化,将钻头工作端产生的高温释放至末端,反复循环W实现具有金刚石复合片的钻头的降温;第一热管5与支撑体3相对应且顶部伸入所述支撑体3,在支撑体3处产生的高温更容易被散出,而第一热管5顶部伸入所述支撑体3使得第一热管5更接近工作点W提高散热效果;而位于中部的第二热管6则对支撑体3之间的中屯、区域进行散热, 降低工作面的温度,并且第二热管6下端粗于其上端使其冷凝段8相对更大,而蒸发段7相对更小,该样的结构便于工质11在冷凝段8的冷凝,也使得工质11在蒸发段7汽化后更易负压,提高循环散热效果。 The present invention, the first heat pipe 5 and the second loop heat pipe 6 has cooling properties, can be transformed W by vapor-liquid two-state working fluid 11, the temperature generated by the release of the working end of the drill bit to the end, repeated cycles W realize a diamond composite cool piece of drill bit; a first heat pipe 5 and the corresponding support body 3 and the top extends into the support body 3, the high temperature in the supporting body 3 produced more likely to be shed, and the first heat pipe extending into the top 5 supporting body 3 so that the first heat pipe 5 is closer to the working point W to improve the cooling effect; and in the middle of the second heat pipe 6 pairs of support 3 between Tuen area for cooling, reducing the working surface temperature, and a second heat pipe 6 After the lower end of the upper end of its crude to make relatively larger condenser section 8, paragraph 7 to evaporate relatively smaller, the kind of structure to facilitate the working fluid 11 in the condensation condensation section 8, but also makes the working fluid in the evaporator section 11 7 vaporize more negative pressure, improving circulation cooling effect. 该种钻头利用如下原理散热:在吸液巧9的作用下工质11进入到蒸发段7,具有金刚石复合片的钻头使用时,靠近工作端的工质11温度升高汽化,在压差作用下汽化的工质11流向热管的冷凝段8,在冷凝段8凝结成液体并向外界释放出热量,该些位于冷凝段8的液体工质11在吸液巧9毛细抽吸力的作用下返回到蒸发段7,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温,散热效果更好。 The seed drill using the following principle Thermal: role in aspiration clever 9 11 getting off quality into the evaporator section 7, PDC drill bit having the use near the working end of the working fluid 11 temperature vaporization, in the role under pressure The vaporized working fluid condenser section 11 to the heat pipe 8, in the condensation section 8 condenses into liquid releases heat to the outside world, which is located some condensed liquid refrigerant paragraph 8 of 11 return at 9 clever aspiration capillary suction force role to the evaporator section 7, and heated again vaporized, so repeated cycles W achieve cooling PDC drill bit having a better cooling effect.

[0020] 实施例2 ; 本实施例所描述的具有金刚石复合片的钻头,与实施例1不同的是;所述钻头基体1由钻、铁、镶、鹤、铜、锡、化-Re合金、YG8、Mn组成,各组份的重量份为;钻30份、铁5份、镶2 份、鹤2份、铜11份、锡1份、化-Re合金32份、YG8 12份、Mn2份。 [0020] Example 2; PDC drill bit having the described embodiment of the present embodiment, as in Example 1 is different; the substrate 1 by the drill bit, iron, inserts, cranes, copper, tin, alloy -Re , YG8, Mn composition, each component parts by weight; drill 30 parts, 5 parts iron, set 2 parts, Crane 2 parts, 11 parts copper, tin 1, 32 parts of -Re alloy, YG8 12 parts, Mn2 parts.

[0021] 所述钻头基体1性能如下表 [0021] Performance of the shank in the following table 1

Figure CN104929527AD00051

由此可知,本实施例所描述的具有金刚石复合片的钻头,在抗弯强度、冲击初性和硬度与同类产品相比具有明显的优势,可有提高使用寿命。 It can be seen, the drill bit having a diamond composite sheet described in this embodiment, in flexural strength, impact resistance and hardness early compared with similar products have obvious advantages, may have to improve the service life.

[002引实施例3 ; 本实施例所描述的具有金刚石复合片的钻头,与实施例1不同的是;金刚石复合片2焊接在钻头基体1上的步骤如下: 采用体积浓度为99. 5%的无水己醇对金刚石复合片2W及钻头基体1的焊接面进行清洗; 在钻头基体1焊接面上、W及金刚石复合片2焊接面上涂抹铜纤焊烙剂,并后将它们置于充满氣气的加热室内升温,加热室内气压保持在0. 5个标准大气压,将钻头基体1加热到650-652°C,并静置5-10秒钟;该步骤中铜纤焊烙剂得到了预热; 将加热后的钻头基体1及金刚石复合片2置于高频感应加热焊室内,焊室内温度控制在660-670°C,将铜纤焊料和铜纤焊烙剂加在已处理的金刚石复合片2与钻头基体1焊接面之间,并采用氧气-己诀火焰加热焊接,焊接温度为670°C。 [002 cited in Example 3; PDC bits with the described embodiment of the present embodiment, as in Example 1 except that the; two diamond composite sheet 1 is welded on the step drill bit base follows: The volume concentration of 99.5% in anhydrous hexanol for PDC drill 2W and welding surface cleaning substrate 1; 2 welding surface drill welding surface substrate 1, W and PDC smear branded copper brazing agent, and after they are placed gas heating chamber filled with gas heating, heating chamber pressure is maintained at 0.5 atm, the substrate 1 is heated to drill 650-652 ° C, and allowed to stand for 5-10 seconds; this step branded copper brazing agent to give preheating; the heated substrate 1 and the diamond drill composite sheet 2 is placed high frequency induction heating welding indoors, welding room temperature control at 660-670 ° C, the solder copper fiber and copper brazing agent added branded processed PDC drill base between 2 and 1 welding surface, and the use of oxygen - had tactic flame heating welding, soldering temperature of 670 ° C.

[0023] 其中;所述铜纤焊料为化e-Srv铜纤焊烙剂采用FB301铜纤焊烙剂,可从河北清河耐磨焊条公司购买。 [0023] wherein; the copper to fiber-based e-Srv solder brazing copper branded agents using FB301 copper brazing branded agents, can be purchased from Hebei Qinghe electrode wear company.

[0024] 采用铜纤焊料进行金刚石复合片的焊接,铜纤焊料具有优异的纤焊工艺性和润湿性,界面冶金结合致密,焊后表面光滑,焊接牢固,铜纤焊烙剂施了前后两次,使其分布更为均匀充分,对铜纤焊料的作用更为充分均匀;可有效解决现有技术中脱片的问题,脱片率可下降15%,延长钻头的使用寿命。 [0024] The solder copper fiber PDC welding, solder copper fiber having excellent brazing process and wettability, interfacial metallurgically bonded dense, smooth surface after the welding, welding firm, branded copper brazing agent is administered before and after twice, making it more uniform distribution of the full role of copper to fiber solder even more fully; can effectively solve the problems of the prior art off-chip and off-chip rate can be decreased by 15%, to extend the life of the drill.

[002引实施例4 ; 本实施例所描述的具有金刚石复合片的钻头,与实施例2不同的是;金刚石复合片2焊接在钻头基体1上的步骤如下: 采用体积浓度为99. 5%的无水己醇对金刚石复合片2W及钻头基体1的焊接面进行清洗; 在钻头基体1焊接面上、W及金刚石复合片2焊接面上涂抹铜纤焊烙剂,并后将它们置于充满氣气的加热室内升温,加热室内气压保持在0. 5个标准大气压,将钻头基体1加热到650-652 °C,并静置5-10秒钟; 将加热后的钻头基体1及金刚石复合片2置于高频感应加热焊室内,焊室内温度控制在660-67(TC,将铜纤焊料和铜纤焊烙剂加在已处理的金刚石复合片2与钻头基体1焊接面之间,并采用氧气-己诀火焰加热焊接,焊接温度为670°C。 [002 cited Example 4; PDC drill bit having the described embodiment of the present embodiment, as in Example 2 except that the; two welded diamond composite sheet 1 on the step drill bit base follows: The volume concentration of 99.5% in anhydrous hexanol for PDC drill 2W and welding surface cleaning substrate 1; 2 welding surface drill welding surface substrate 1, W and PDC smear branded copper brazing agent, and after they are placed gas heating chamber filled with gas heating, heating chamber pressure is maintained at 0.5 atm, the substrate 1 is heated to drill 650-652 ° C, and allowed to stand for 5-10 seconds; the heated substrate 1 and the diamond drill bit The composite sheet 2 is placed high frequency induction heating welding indoors, welding room temperature control in 660-67 (TC, copper fiber and copper brazing solders branded agents plus 2 substrate 1 and the welding surface drill PDC processed between and the use of oxygen - had tactic flame heating welding, soldering temperature of 670 ° C.

[002引其中;所述铜纤焊料为Cu3-Sn。 [002 cited therein; solder the copper fibers as Cu3-Sn.

[0027]实施例5; 如图3所示,本实施例所描述的具有金刚石复合片的钻头,包括钻头基体1和金刚石复合片2,所述金刚石复合片2焊接设日采用银纤焊)在钻头基体1上,钻头基体1的工作端沿圆周方向一体设置有若干支撑体3,支撑体3上设置有凹槽4,凹槽4内设有所述金刚石复合片2,所述金刚石复合片2高于支撑体3顶部5mm;所述钻头基体1内具有若干第一热管5,所述第一热管5数量与支撑体3相同且位置与支撑体3相对应;所述第一热管5顶部伸入所述支撑体3 ;第一热管5靠近工作端的一端为蒸发段7、另一端为冷凝段8 ;在第一热管5的管壁上设有吸液巧9,在第一热管5内注入有工质11并被端盖10密封;在吸液巧9的作用下工质11进入到蒸发段7,具有金刚石复合片的钻头使用时,靠近工作端的工质11温度升高汽化,在压差作用下汽化的工质11流向热管的冷凝段8,在冷凝段8凝结成液体并向外界释放出热量,该些位于冷凝段8的液体工质11在吸液巧9毛细抽吸力的作用下返回到蒸发段7,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温。 [0027] Example 5; Figure 3, PDC drill bit having the described embodiment of the present embodiment includes a substrate 1 and the diamond drill composite sheet 2, said diamond composite sheet 2 days welding set with silver brazing) On the shank 1, the working end of the drill bit base body 1 is provided with a circumferential direction a plurality of integrally supporting body 3, is provided on the support member 3 has a groove 4, groove 4 equipped with the diamond composite sheet 2, said diamond composite sheet 2 higher than the top of the support body 3 5mm; 5 having a plurality of first heat pipe 1 of the shank, the first heat pipe 5 and the support 3 are the same number and the position corresponding to the support member 3; said first heat pipe 5 top extends into the supporting body 3; near the end of the first heat pipe 5 working end of the evaporating section 7, the other end of the condensation section 8; 9 with a pipette clever in the wall of the first heat pipe 5, in the first heat pipe 5 within the working fluid is injected into the seal 11 and the end cap 10; aspiration clever role in getting off quality 11 9 into the evaporator section 7, with PDC drill bits when used near the working end of the working fluid 11 temperature vaporization, In the differential pressure condensation section vaporized working fluid 11 to the heat pipe 8, in the condensation section 8 condenses into liquid releases heat to the outside world, which is located some condensed liquid medium segment 8 11 9 capillary suction aspiration clever Under the force of the return to the evaporator 7, and heated vaporized again, so repeated cycles to achieve cooling W bit having a diamond composite sheet. 本实施例所描述的具有金刚石复合片的钻头,所述钻头基体1由钻、铁、镶、鹤、铜、锡、化-Re合金、YG8、Mn组成,各组份的重量份为:钻30份、铁5份、镶2份、鹤2份、铜11份、锡1份、 Cu-Re合金32 份、YG8 12 份、Mn2 份。 PDC drill bit having the embodiment described herein, the substrate 1 by the drill bit, iron, inserts, cranes, copper, tin, -Re alloy, YG8, Mn composition, each component part weight: Drill 30 parts, 5 parts iron, set 2 parts, Crane 2 parts, 11 parts copper, tin 1, 32 parts Cu-Re alloy, YG8 12 parts, Mn2 parts.

[002引所述钻头基体1性能如下表 [002 cited the shank 1 performance in the following table

Figure CN104929527AD00071

本实施例所描述的具有金刚石复合片的钻头,它的有益效果是;钻头寿命长;W金刚石复合片为主切削齿,复合片的耐磨性能是硬质合金的20-40倍W上,使用寿命是普通电锻、型金刚石钻头的3~5倍W上。 PDC drill bit having the embodiment described, its beneficial effects; long drill life; W-based PDC cutters, the wear resistance of the composite sheet is 20-40 times carbide W, life is ordinary electric forging, the type of diamond drill 3 to 5 times W. 本发明中,第一热管5具有循环散热的特性,可W通过工质11汽液两态的转化,将钻头工作端产生的高温释放至末端,反复循环W实现具有金刚石复合片的钻头的降温;第一热管5与支撑体3相对应且顶部伸入所述支撑体3,在支撑体3 处产生的高温更容易被散出,而第一热管5顶部伸入所述支撑体3使得第一热管5更接近工作点W提高散热效果;该种钻头利用如下原理散热:在吸液巧9的作用下工质11进入到蒸发段7,具有金刚石复合片的钻头使用时,靠近工作端的工质11温度升高汽化,在压差作用下汽化的工质11流向热管的冷凝段8,在冷凝段8凝结成液体并向外界释放出热量,该些位于冷凝段8的液体工质11在吸液巧9毛细抽吸力的作用下返回到蒸发段7,并再次受热汽化,如此反复循环W实现具有金刚石复合片的钻头的降温,散热效果更好。 The present invention, the first heat pipe 5 has a heat cycle characteristics can be transformed W by vapor-liquid two-state working fluid 11, the temperature generated by the release of the working end of the drill bit to the end, repeated cycles W achieve cooling has PDC drill ; first heat pipe 5 corresponds to the support member 3 and extends into the top of the support member 3, the supporting member 3 at a high temperature generated more easily dissipated, and the first heat pipe 5 extends into the top of the support member 3 so that the first A heat pipe 5 is closer to the working point W to improve the cooling effect; the kind of drill using the following principle Thermal: aspiration Qiao 9 role in getting off mass 11 into the evaporator section 7, with the time PDC drill bits used near the working end of work quality 11 temperature vaporization, condensation section at differential pressure vaporized working fluid 11 to the heat pipe 8, in the condensation section 8 condenses into liquid releases heat to the outside world, which is located some condensed liquid refrigerant paragraph 8 of 11 Back Next aspiration capillary suction force skillfully 9 is applied to the evaporator 7, and heated vaporized again, so repeated cycles W achieve cooling PDC drill bit having a better cooling effect.

[002引实施例6 ; 本实施例所描述的具有金刚石复合片的钻头,与实施例5不同的是;金刚石复合片2焊接在钻头基体1上的步骤如下: 采用体积浓度为99. 5%的无水己醇对金刚石复合片2W及钻头基体1的焊接面进行清洗; 在钻头基体1焊接面上、W及金刚石复合片2焊接面上涂抹铜纤焊烙剂,并后将它们置于充满氣气的加热室内升温,加热室内气压保持在0. 5个标准大气压,将钻头基体1加热到650-652 °C,并静置5-10秒钟; 将加热后的钻头基体1及金刚石复合片2置于高频感应加热焊室内,焊室内温度控制在660-67(TC,将铜纤焊料和铜纤焊烙剂加在已处理的金刚石复合片2与钻头基体1焊接面之间,并采用氧气-己诀火焰加热焊接,焊接温度为670°C。 [002 cited Example 6; PDC drill bit having the described embodiment of the present embodiment, as in Example 5 except that the; two welded diamond composite sheet 1 on the step drill bit base follows: The volume concentration of 99.5% in anhydrous hexanol for PDC drill 2W and welding surface cleaning substrate 1; 2 welding surface drill welding surface substrate 1, W and PDC smear branded copper brazing agent, and after they are placed gas heating chamber filled with gas heating, heating chamber pressure is maintained at 0.5 atm, the substrate 1 is heated to drill 650-652 ° C, and allowed to stand for 5-10 seconds; the heated substrate 1 and the diamond drill bit The composite sheet 2 is placed high frequency induction heating welding indoors, welding room temperature control in 660-67 (TC, copper fiber and copper brazing solders branded agents plus 2 substrate 1 and the welding surface drill PDC processed between and the use of oxygen - had tactic flame heating welding, soldering temperature of 670 ° C.

[0030] 其中;所述铜纤焊料为化3-Sn。 [0030] wherein; the copper to fiber-based solder 3-Sn.

[0031] 上述实施例仅仅是对本发明的构思作举例说明,明显地,本专利的保护范围不限于上述实施例。 [0031] The above-described embodiments are merely for the concept of the present invention will be illustrated, obviously, the scope of patent protection is not limited to the embodiments described above.

[0032] 本领域技术人员对上述实施例所作的各种等同修改或补充,都应当落入本专利的保护范围。 [0032] The person skilled in the various embodiments described above equivalent modifications or additions made, shall fall within the scope of the patent protection.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
CN2570436Y *5 Jun 20023 Sep 2003邵兴新Casing of bit head
CN102086757A *23 Oct 20108 Jun 2011李仕清Composite cutting drill
CN201865583U *23 Nov 201015 Jun 2011通化市远通石油机械有限责任公司High-efficiency three-scraper drill bit
US4334585 *14 Jul 198015 Jun 1982Smith International, Inc.Insert retention and cooling apparatus for drag bits
US4499958 *29 Abr 198319 Feb 1985Strata Bit CorporationDrag blade bit with diamond cutting elements
US20040040752 *27 Ago 20024 Mar 2004Brandenberg Kristin RMethod of producing downhole drill bits with integral carbide studs
Clasificaciones
Clasificación internacionalC22C26/00, B23K1/20, C22C30/04, B23K3/04, B23K3/08, E21B10/46, B23K1/19
Eventos legales
FechaCódigoEventoDescripción
23 Sep 2015C06Publication
21 Oct 2015C10Entry into substantive examination
24 May 2017TA01
24 May 2017CB03
31 May 2017GR01