CN1057489C - Hot extruding and cold press formation method for producing chemicals container of sprayer - Google Patents
Hot extruding and cold press formation method for producing chemicals container of sprayer Download PDFInfo
- Publication number
- CN1057489C CN1057489C CN97106300A CN97106300A CN1057489C CN 1057489 C CN1057489 C CN 1057489C CN 97106300 A CN97106300 A CN 97106300A CN 97106300 A CN97106300 A CN 97106300A CN 1057489 C CN1057489 C CN 1057489C
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- materials
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- sprayer
- spray tank
- lid
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Catching Or Destruction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a method for producing the physic liquor boxes of sprayers. A material fusion index is regulated in order to obtain proper plasticity, and a hot extrusion cold press method is used for improving the material density to obtain a product with high intensity. The product manufactured by the method overcomes the defects of easy damage and short service life of the existing product, is suitable for placing pesticide outdoors and being used for a long term, and has long service life which reaches 15 years.
Description
The present invention relates to produce the method for agricultural atomizer spray tank, particularly, a kind of method that adopts the hot extrude cold-press process to produce agricultural spray liquor case.
Sprayer is one of rural area common tool, is used to spray insecticide.That its spray tank requires is corrosion-resistant, intensity is high, indeformable and non-leakage, be suitable for using for a long time out of doors.Though product made of plastic can be corrosion-resistant usually, there are number of metal part, these parts still to be easy to be corroded by often subsidiary thereon.Simultaneously, the common plastics density of material is low, intensity is low, uses easily aging out of doors.These factors all make shorten the service life of sprayer spray tank.
Therefore, need a kind of being suitable for to hold agricultural chemicals, durable, erosion-resisting agricultural atomizer spray tank in the environment out of doors.
Further purpose of the present invention is to propose a kind of method that adopts the hot extrude cold-press process to produce the sprayer spray tank.
According to the present invention, a kind of method of producing the sprayer spray tank comprises
A) blend step is that the plastic raw materials of 1-7 mixes with the proportioning material with melt index, obtains pending labor and materials;
B) plasticizing step with labor and materials heating and stir a scheduled time, makes it be plastifying state;
C) discharging step is extruded from labor and materials and is separated and is used to form the required material base of single finished product;
D) forming step, with material base at 150--250Kgf/cm
2Be pressed into soup casing and the lid and the demoulding of required form down;
E) engagement step engages the complete spray tank of formation with soup casing and lid.
According to method of the present invention, because high-pressure extrusion moulding under mecystasis increases density of material greatly, can obtain high-intensity sprayer spray tank, can reach 15 years its service life.
Narrate one embodiment of the present of invention below.
In this example, the plastic raw materials of employing is polypropylene and/or high density polyethylene (HDPE), from economic angle, can utilize with waste plastics recovery.At first,, can comprise that a batching step smashes particle to suitable size with polypropylene and/or high density polyethylene (HDPE), and the raw material that melt index is different collocation mixes, obtain melt index and be the graininess plastic raw materials in the 1-7 scope according to used material.Preferably, melt index can have enough plasticity in the 4-5 scope, be easy to compression moulding.Secondly, by a blend step, plastic raw materials is mixed with suitable proportioning material.
The proportioning material comprises antiaging agent and filler, and the former can be as calcium phosphate etc., and the latter can be a stone flour etc., plays styling.
According to embodiments of the invention, can be raw materials for production with waste plastics, help reducing production costs and reducing environmental pollution, the protection environment.
When needing, the proportioning material can also comprise an amount of pigment and releasing agent.
Each composition weight content is roughly in the labor and materials that obtain after the mixing:
Plastic raw materials 60-90%, antiaging agent 5-10%, filler 15-40% if add pigment or releasing agent, respectively account for 2-5 ‰ and 1-2 ‰.
The labor and materials that finish of preparation can be heated processing like this, and heating and stirred for several minute in 200 ℃ to 150 ℃ scopes preferably 2-3 minute, make into plastifying state.
Meanwhile, can carry out preheating, make it be in 80 ℃-100 ℃, so that effect is preferably arranged in pressing process thereafter to mould.
Then, by the labor and materials of the required deal of single workpiece, extrude respectively and separate each material base that is used for soup casing and lid.With forcing press at 150-250Kgf/cm
2High pressure under material base is pressed into the blank of soup casing and lid, the demoulding is taken out the trimming back and with Plastic Welding technology body, lid is bonded into one, obtains the sprayer spray tank according to method manufacturing of the present invention thus.
In Plastic Welding, can be with polypropylene as scolder.
Owing in the present invention melt index has been done adjustment in advance, make material have suitable plastic, be suitable for compression moulding under big pressure.Like this, the finished-product material density of making is big, and the intensity height is difficult for wearing out, and is suitable for holding pesticide solution, is service life 15 years.
Certainly, can make some variations or parameter adjusting to above-mentioned processing step, and not leave claims scope.
Claims (7)
1, a kind of method of producing the sprayer spray tank comprises
A) blend step is that plastic raw materials polypropylene or high density polyethylene (HDPE) in the 1-7 scope mixes with the proportioning material with melt index, obtains pending labor and materials;
B) the plasticizing step heats labor and materials and stirred 2-3 minute in 200 ℃ to 150 ℃ scopes, makes it be plastifying state;
C) preheating step is with mold heated to 80 ℃-100 ℃;
D) discharging step is extruded from labor and materials and is separated and is used to form the required material base of single finished product;
E) forming step, with material base at 150-250Kgf/cm
2Be pressed into soup casing and the lid and the demoulding of required form down;
F) the trimming step is rebuild a pair of blank behind the demoulding;
G) integrating step as scolder, utilizes welding procedure that soup casing and lid are engaged the complete spray tank of formation with polypropylene.
2, method as claimed in claim 1 is characterized in that, described proportioning material comprises antiaging agent and filler.
3, method as claimed in claim 2 is characterized in that, described antiaging agent is a calcium phosphate.
4, method as claimed in claim 2 is characterized in that, described filler is a stone flour.
5, method as claimed in claim 2 is characterized in that, described proportioning material further comprises pigment and releasing agent.
6, method as claimed in claim 1 is characterized in that, before the described blend step, comprises a batching step, and raw material are smashed to suitable size and the raw material collocation mixing that melt index is different.
7, method as claimed in claim 1 is characterized in that, described plastic raw materials is by the waste plastics recovery utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106300A CN1057489C (en) | 1997-03-03 | 1997-03-03 | Hot extruding and cold press formation method for producing chemicals container of sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106300A CN1057489C (en) | 1997-03-03 | 1997-03-03 | Hot extruding and cold press formation method for producing chemicals container of sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1192404A CN1192404A (en) | 1998-09-09 |
| CN1057489C true CN1057489C (en) | 2000-10-18 |
Family
ID=5168552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97106300A Expired - Fee Related CN1057489C (en) | 1997-03-03 | 1997-03-03 | Hot extruding and cold press formation method for producing chemicals container of sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057489C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537138A (en) * | 1968-07-02 | 1970-11-03 | Brown Machine Co Of Michigan | Apparatus and method for forming articles in a pair of incrementally advanced thermoplastic webs |
| JPS59209821A (en) * | 1983-05-14 | 1984-11-28 | Kodama Kagaku Kogyo Kk | Manufacture of plastic molded item with generally boxlike shape |
-
1997
- 1997-03-03 CN CN97106300A patent/CN1057489C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537138A (en) * | 1968-07-02 | 1970-11-03 | Brown Machine Co Of Michigan | Apparatus and method for forming articles in a pair of incrementally advanced thermoplastic webs |
| JPS59209821A (en) * | 1983-05-14 | 1984-11-28 | Kodama Kagaku Kogyo Kk | Manufacture of plastic molded item with generally boxlike shape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1192404A (en) | 1998-09-09 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |