CN101260342B - Special-purpose water-base cutting liquid for cannonball cartridge finish turning and producing method thereof - Google Patents

Abstract

The invention discloses water-based cutting fluid special for fine turning cannonball cartridges and a production method, wherein, the water-based cutting fluid special for the fine turning cannonball cartridges can maximally decrease the cutting temperature and the cutting force, improve the efficiency of cutting machining, assure the cutting accuracy and the surface quality of the workpiece, prolong the service life of the cutting tool, decrease the cost, and meet the requirement of environmental protection. The raw materials of the special water-based cutting fluid and the weight percentage are as follows: phytic acid 1.5-2.5 percent, sodium benzoate 7-9 percent, trolamine 5-7 percent, trisodium phosphate 1.5-2.5 percent, sodium thiosulfate 0.5-1.5 percent, benzotriazole 0.05-0.15 percent, industrial alcohol 2.5-3.5 percent, polyethyleneglycol 3.5-4.5 percent, glycerin 2.5-3.5 percent, isothiazolone 0.4- 0.6 percent, and deionized water 68-72 percent. The production method is that:the synthetic condition of normal temperature, middle temperature and normal temperature is adopted for stirring synthesis.

Description

Special-purpose water-base cutting liquid for cannonball cartridge finish turning and working method

Technical field:

The present invention relates to a kind of metal cutting processing and use cutting fluid, especially a kind of can reduce to greatest extent cutting temperature and cutting firmly, improve cut efficient, the cutting precision that guarantees workpiece and surface quality and also can prolong the work-ing life of cutter, the special-purpose water-base cutting liquid for cannonball cartridge finish turning that reduces cost, satisfies environmental requirement and working method.

Background technology:

Metal cutting processing provides under the condition of power at lathe exactly; Through cutter metal blank is cut; Make it to obtain all satisfactory course of processing of shape, size, precision and surface quality, can be divided into car, mill, brill, plane, boring, cut with scissors, draw and grinding etc.In the Cutting Process process; Smear metal acts on the cutter rake face with the pressure up to 2～3GPa; Friction generation heat takes place with the workpiece surface of having processed in knife face behind the cutter simultaneously; The process zone temperature is sharply risen reach more than 1000 ℃, the cutting pressure on the contacted point of contact of cutter and workpiece to be machined surface can make this surface, place bear load up to 5000N/mm ²More than.Therefore, in metal cutting process, just need to use cutting fluid, cutting fluid must have excellent lubrication property, cooling property and rust-preventing characteristic, produces phenomenons such as local melting welding or cutter annealing wearing and tearing when preventing cut.

The material of shell cartridge case is H62 and H68 brass, and its surperficial bottom needs the finish turning cut.Because H62 is the copper zinc alloy of 60% bronze medal and 40% zinc; H68 then is 70% the copper and the copper zinc alloy of 30% zinc; During cut; A large amount of heat in metal cuttings that cutting zone produces very easily cause copper zinc alloy workpiece surface localized burn, produce seam and fusion phenomenon, directly influence the workpiece surface processing quality; Because zinc belongs to amphoteric metal, in the air ambient of acidic medium and alkaline medium, all can be corroded, and copper is also very poor to the resistance to corrosion of acidic medium again.Therefore existing cutting fluid can not satisfy the particular requirement of shell cartridge case cut, to such an extent as to the following problem of normal appearance in the cutting process:

1. workpiece surface produces because of the phase seam, the poor surface smoothness after the cut;

2. workpiece surface produces local fusing, the solid-state copper particle of the surface sediment after the cut;

3. the workpiece surface rust prevention during manufacture property after the cut is very poor, because oxidized variable color forms surperficial uneven spot, brings very big difficulty for the generation of back Dow Chemical polishing and chromium-free deactivation film.

Summary of the invention:

The present invention is in order to solve the existing in prior technology technical problem, provide a kind of can reduce to greatest extent cutting temperature and cutting firmly, improve cut efficient, the cutting precision that guarantees workpiece and surface quality and can prolong the work-ing life of cutter, the special-purpose water-base cutting liquid for cannonball cartridge finish turning that reduces cost, satisfies environmental requirement and working method.

Technical solution of the present invention is: a kind of special-purpose water-base cutting liquid for cannonball cartridge finish turning, it is characterized in that raw materials used and weight percent following:

Phytic acid 1.5～2.5%

Sodium Benzoate 7～9%

Trolamine 5～7%

Tsp 1.5～2.5%

Sulfothiorine 0.5～1.5%

Benzotriazole 0.05～0.15

Industrial alcohol 2.5～3.5

Polyoxyethylene glycol 3.5～4.5%

Glycerine 2.5～3.5%

Different plug azoles quinoline ketone 0.4～0.6%

Deionized water 68～72%.

Preferred plan raw materials used and weight percent is following:

Phytic acid 2%

Sodium Benzoate 8%

Trolamine 6%

Tsp 2%

Sulfothiorine 1%

Benzotriazole 0.1%

Industrial alcohol 3%

Polyoxyethylene glycol 4%

Glycerine 3%

Different plug azoles quinoline ketone 0.5%

Deionized water 70.4%.

A kind of working method of special-purpose water-base cutting liquid for cannonball cartridge finish turning is characterized in that carrying out as follows:

A. the industrial alcohol with calculated amount dissolves benzotriazole, and is subsequent use;

B. deionized water, phytic acid, Sodium Benzoate, the trolamine with calculated amount adds in the reaction kettle successively, starts whisking appliance, stirs at normal temperatures 1 hour with 200 rev/mins;

C. again the benzotriazole dissolve with ethanol liquid of tsp, Sulfothiorine, polyoxyethylene glycol, glycerine, RH-893 and a step gained of calculated amount is added in the reaction kettle successively, be heated to 50～60 ℃, continue to stir 2 hours;

D. reduce to normal temperature.

The present invention compares with prior art, has following advantage:

1. the lubricated promoting agent material that the present invention contained has bigger avidity to the copper zinc alloy surface, and the polar group of polar molecule has stronger chemisorption and physisorption to the copper zinc alloy surface simultaneously.The present invention can promptly be penetrated between copper zinc alloy smear metal and the cutter rake face; Promptly be penetrated into behind the cutter between the knife face and copper zinc alloy workpiece surface; It is higher more stable on the copper zinc alloy workpiece surface, to form fusing point; And not only firm but also firm lubricant film layer, reach better lubricant effect, thereby improved workpiece surface finish.

2. the heat-eliminating medium that the present invention contained can be taken away the heat in metal cutting that has produced rapidly, reduces cutting temperature effectively, avoids producing local melting and workpiece surface and piles up solid-state copper particulate phenomenon;

3. the present invention has reasonably selected to be applicable to simultaneously the inhibiter and the passivator of copper and zinc, and can dissolve each other with other promoting agent materials coupling and can not resist function separately mutually, makes the workpiece after the cut not corrode nondiscoloration for a long time.

4. the present invention is not perishable in long storage or use, and is especially using long quality-guarantee period in summer, nontoxic to the operator, environmentally safe.

Embodiment:

Embodiment 1:

Raw material and weight percent are following: phytic acid 1.5～2.5%, Sodium Benzoate 7～9%, trolamine 5～7%, tsp 1.5～2.5%, Sulfothiorine 0.5～1.5%, benzotriazole 0.05～0.15, industrial alcohol 2.5～3.5, polyoxyethylene glycol 3.5～4.5%, glycerine 2.5～3.5%, different plug azoles quinoline ketone 0.4～0.6%, deionized water 68～72%.

Each raw material can be selected in weight range, and making the weight sum is 100%.

Working method is following:

A. the industrial alcohol with calculated amount dissolves benzotriazole, and is subsequent use;

B. deionized water, phytic acid, Sodium Benzoate, the trolamine with calculated amount adds in the reaction kettle successively, starts whisking appliance, stirs at normal temperatures 1 hour with 200 rev/mins;

C. again the benzotriazole dissolve with ethanol liquid of tsp, Sulfothiorine, polyoxyethylene glycol, glycerine, RH-893 and a step gained of calculated amount is added in the reaction kettle successively, be heated to 50～60 ℃, continue to stir 2 hours;

D. reduce to normal temperature.

Product appearance: the little sticking shape transparent liquid of little purple.

Embodiment 2:

Working method is with embodiment 1, and just raw material and weight percent are following:

Phytic acid 2%, Sodium Benzoate 8%, trolamine 6%, tsp 2%, Sulfothiorine 1%, benzotriazole 0.1%, industrial alcohol 3%, polyoxyethylene glycol 4%, glycerine 3%, different plug azoles quinoline ketone 0.5%, deionized water 70.4%.

Product appearance: the little sticking shape transparent liquid of little purple.

The product of the embodiment of the invention 1 and embodiment 2 is prepared working fluid by 5%, and the machine cut liquid of packing into is contained in the groove, adopts pump to take out the circulated sprinkling mode and carries out cut.

Be applied to shell cartridge case finish turning cut, can reduce cutting temperature and cutting to greatest extent firmly, improve cut efficient, the cutting precision of workpiece and surface quality, and can prolong work-ing life of cutter; Can make cutting speed improve 15%～30%, the temperature of cutting zone descends 100～200 ℃, and cutting firmly reduces 10%～30%, prolongs 5～6 times the work-ing life of cutter, and workpiece surface roughness reduces by 1～3 grade.Especially the anti-variable color phase of rust prevention during manufacture extended to more than 30 days by original 2～3 days.

Claims (3)

1. special-purpose water-base cutting liquid for cannonball cartridge finish turning; It is characterized in that raw materials used and weight percent following: phytic acid 1.5～2.5%, Sodium Benzoate 7～9%, trolamine 5～7%, tsp 1.5～2.5%, Sulfothiorine 0.5～1.5%, benzotriazole 0.05～0.15%, industrial alcohol 2.5～3.5%, polyoxyethylene glycol 3.5～4.5%, glycerine 2.5～3.5%, RH-893 0.4～0.6% and deionized water 68～72% prepare as follows:

A. the industrial alcohol with calculated amount dissolves benzotriazole, and is subsequent use;

B. deionized water, phytic acid, Sodium Benzoate, the trolamine with calculated amount adds in the reaction kettle successively, starts whisking appliance, stirs at normal temperatures 1 hour with 200 rev/mins;

C. again the benzotriazole dissolve with ethanol liquid of tsp, Sulfothiorine, polyoxyethylene glycol, glycerine, RH-893 and a step gained of calculated amount is added in the reaction kettle successively, be heated to 50～60 ℃, continue to stir 2 hours;

D. reduce to normal temperature.

2. special-purpose water-base cutting liquid for cannonball cartridge finish turning according to claim 1, it is characterized in that raw materials used and weight percent following:

3. working method of special-purpose water-base cutting liquid for cannonball cartridge finish turning according to claim 1 is characterized in that carrying out as follows:

A. the industrial alcohol with calculated amount dissolves benzotriazole, and is subsequent use;

B. deionized water, phytic acid, Sodium Benzoate, the trolamine with calculated amount adds in the reaction kettle successively, starts whisking appliance, stirs at normal temperatures 1 hour with 200 rev/mins;

C. again the benzotriazole dissolve with ethanol liquid of tsp, Sulfothiorine, polyoxyethylene glycol, glycerine, RH-893 and a step gained of calculated amount is added in the reaction kettle successively, be heated to 50～60 ℃, continue to stir 2 hours;

D. reduce to normal temperature.