TWI774103B - How to make a cartridge - Google Patents

Abstract

The present invention provides a method for manufacturing a cartridge. First, a metal cake-shaped material is subjected to pickling, soaping, rinsing, and process annealing, and then multiple times of pickling, soaping, drawing, cleaning, and process annealing. Then, the cartridge is made. Thereby, the cartridge has the functions of being easy to manufacture and reducing the manufacturing cost, and at the same time improving the manufacturing yield and dimensional accuracy of the cartridge, so as to facilitate the subsequent related processes.

Description

How to make a cartridge

The present invention provides a method for manufacturing a cartridge, in particular to a method for manufacturing a cartridge which can facilitate the manufacture of the cartridge and reduce the manufacturing cost, and at the same time improve the manufacturing yield and dimensional accuracy of the cartridge.

In the production of general cartridges, the size and strength of each part of the cartridge have different specifications. In the current production method, not only the production process of the cartridge is more complicated, the labor cost will increase, but also because It is difficult to meet the size requirements of each part of the cartridge, and the production yield is low.

In view of the above-mentioned prior art, the inventor has developed a method for making a cartridge, in order to achieve the effect of making the cartridge easy to manufacture and reducing the manufacturing cost, and at the same time improve the manufacturing yield and dimensional accuracy of the cartridge, so as to facilitate the follow-up. related process.

For reaching the above-mentioned purpose and other purposes, the present invention provides a kind of cartridge manufacturing method, it comprises the following steps:

Step 1: Provide a metal cake-shaped material, pickle the metal cake-shaped material with soap and then clean it, and then wash the metal cake-shaped material after cleaning, so that the metal cake-shaped material is formed with a A first barrel at one of the first heights, and then the first barrel is annealed.

Step 2: After the first cylinder body is pickled and soaped, the first lengthening is carried out, so that the first cylinder body forms a second cylinder body with a second height, and then the second cylinder body is carried out. Cleaning and annealing.

Step 3: After the second barrel body is pickled and soaped, the second barrel body is extended for the second time, so that the second barrel body forms a third barrel body with a third height, and then the third barrel body is carried out. Cleaning and annealing.

Step 4: After the third barrel body is pickled and soaped, the third barrel is extended for the third time, so that the third barrel body forms a fourth barrel body with a fourth height, and then the fourth barrel body is carried out. Cleaning and annealing.

Step 5: After the fourth barrel body is pickled and soaped, the fourth barrel body is drawn for the fourth time, so that the fourth barrel body forms a fifth barrel body with a fifth height, and then the fifth barrel body is carried out. Cleaning and annealing.

Step 6: After the fifth barrel body is pickled and soaped, the fifth barrel body is extended for the fifth time, so that the fifth barrel body forms a sixth barrel body with a sixth height, and the bottom of the sixth barrel body is formed. After the bottom is pressed, a primer hole is formed by punching, and the sixth barrel is heat-treated, and the top end of the sixth barrel is closed, and then the bottom and the top are annealed, and processed by lathe. into a bullet.

In the above-mentioned manufacturing method of the cartridge, the metal cake-shaped material is made of steel or copper.

In the above-mentioned cartridge manufacturing method, the pickling and soaping described in Steps 1 to 6 are 98% industrial-grade sulfuric acid added with 0.1% inhibitor, and carried out at a temperature of 85°C to 75°C for 3 minutes to 6 minutes. Pickling, followed by soaping with active metal forming lubricant at 91°C-85°C for 4-6 minutes.

In the above-mentioned cartridge manufacturing method, the cleaning described in steps 1 to 5 is to first use hot water overflow water and liquid detergent, and perform a cleaning at a temperature of 95 ℃ ~ 85 ℃ for 3 minutes to 6 minutes, and then use The hot overflow water is used for secondary cleaning at a temperature of 95°C to 85°C for 1 minute.

In the above-mentioned manufacturing method of the cartridge, the annealing described in Steps 1 to 6 is annealed at a heating time of 60 minutes to 665°C-655°C.

In the above-mentioned cartridge manufacturing method, the pressure of the first lengthening is 250T, and the first cylinder is lengthened to a second height of 83.2mm~124.6mm at a speed of 30mm/s for 1 second to form the second height. Two barrels; the second barrel is lengthened to a pressure of 180T, and the second barrel is drawn to a third height of 124.6mm~186mm at a speed of 30mm/s for 1 second to form the third barrel; The pressure of the third drawing is 150T, and the third barrel is drawn to a fourth height of 186mm~310mm at a speed of 20mm/s for 1 second to form the fourth barrel; the pressure of the fourth drawing It is 125T, and the fourth barrel is elongated to a fifth height of 310mm~432mm at a speed of 25mm/s for 5 seconds to form the fifth barrel; the pressure of the fifth drawing is 80T, and every 3 At a speed of 80mm/s per second, the fifth barrel is lengthened to a sixth height of 432mm~623mm to form the sixth barrel.

In the above-mentioned cartridge manufacturing method, the heat treatment described in step 6 is a salt bath heat treatment, and includes quenching at 880°C to 860°C, primary tempering at 320°C to 310°C, annealing at 545°C to 535°C, and 285°C. Secondary tempering at ℃~275℃.

In the above-mentioned cartridge manufacturing method, the turning described in step 6 is to perform plane turning on the bottom of the sixth barrel, and then perform turning on the barrel of the sixth barrel, and at the bottom of the sixth barrel. The inner hole is turned, the inner hole of the sixth barrel is chamfered, and the inner hole of the sixth barrel is turned for screw thread.

In the above-mentioned manufacturing method of the cartridge, in step 6, degreasing, rust removal, mouth annealing, surface polishing, application of anti-rust oil, chamber closing inspection and galvanizing may be performed after turning, so as to manufacture the cartridge. cylinder.

Therefore, the cartridge manufacturing method of the present invention can make the cartridge easy to manufacture and reduce the manufacturing cost, and at the same time improve the manufacturing yield and dimensional accuracy of the cartridge, so as to facilitate subsequent related processes.

1: Cartridge

10: Metal Pies

11: The first barrel

12: The second barrel

13: The third barrel

14: Fourth barrel

15: Fifth barrel

16: The sixth barrel

101: Primer hole

S1: Step 1

S11: Pickling and soaping

S12: Cleaning

S13: flushing

S14: Annealing

S2: Step 2

S21: Pickling and soaping

S22: The first introduction

S23: Cleaning

S24: Annealing

S3: Step 3

S31: Pickling and soaping

S32: The second lead

S33: Cleaning

S34: Annealing

S4: Step 4

S41: Pickling and soaping

S42: The third lead

S43: Cleaning

S44: Annealing

S5: Step 5

S51: Pickling and soaping

S52: The fourth lead

S53: Cleaning

S54: Annealing

S6: Step Six

S61: Pickling and soaping

S62: The fifth lead

S63: Bottom pressing

S64: Stamping

S65: Heat Treatment

S66: Closing work

S67: Bottom Annealed

S68: Top end annealing

h1: first height

h2: second height

h3: the third height

h4: fourth height

h5: fifth height

h6: sixth height

[FIG. 1] is a schematic flow chart of the cartridge manufacturing method of the present invention.

[Fig. 2] is a schematic diagram of the present invention formed from a metal cake-shaped material to the fifth cylinder body.

[Fig. 3] is a schematic view of the appearance of the cartridge of the present invention.

In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail by the following specific embodiments and the accompanying drawings. The description is as follows: please refer to FIG. 1 to FIG. As shown in the figure: the present invention provides a method for making a cartridge, which comprises the following steps:

Step 1 S1: providing a metal cake-shaped material 10, pickling and soaping the metal cake-shaped material S11 and then cleaning S12, after cleaning S12, then washing the metal cake-shaped material 10 S13, so that the The metal cake-shaped material 10 is formed with a first barrel 11 having a first height h1, and then the first barrel 11 is annealed S14.

Step 2 S2: After the first barrel 11 is pickled and soaped S21, the first extension S22 is performed, so that the first barrel 11 forms a second barrel 12 with a second height h2, and then Then, cleaning S23 and annealing S24 are performed on the second barrel 12 .

Step 3 S3: After the second barrel body 12 is pickled and soaped S31, the second barrel body 12 is elongated for the second time S32, so that the second barrel body 12 forms a third barrel body 13 having a third height h3, and then Then, cleaning S33 and annealing S34 are performed on the third barrel 13 .

Step 4 S4: after the third cylinder body 13 is pickled and soaped S41, the third cylinder body 13 is elongated for the third time S42, so that the third cylinder body 13 forms a fourth cylinder body 14 with a fourth height h4, and then Then, cleaning S43 and annealing S44 are performed on the fourth barrel 14 .

Step 5 S5: After the fourth barrel body 14 is pickled and soaped S51, the fourth barrel body 14 is lengthened for the fourth time S52, so that the fourth barrel body 14 forms a fifth barrel body 15 having a fifth height h5, and then Then, cleaning S53 and annealing S54 are performed on the fifth barrel 15 .

Step 6 S6: After the fifth barrel body 15 is pickled and soaped S61, the fifth barrel body 15 is lengthened for the fifth time S62, so that the fifth barrel body 15 forms a sixth barrel body 16 with a sixth height h6, to The bottom of the sixth barrel 16 is pressed S63 and then punched S64 to form a primer hole 101 , and the sixth barrel 16 is subjected to heat treatment S65 , and the top end of the sixth barrel 16 is closed S66 , and then Then, the bottom annealing S67 and the top annealing S68 are performed, and a cartridge 1 is made after turning treatment.

In this way, through the above steps, the cartridge 1 can be easily manufactured and the manufacturing cost can be reduced, and at the same time, the manufacturing yield and dimensional accuracy of the cartridge 1 can be improved, so as to facilitate subsequent related processes.

In one embodiment of the present invention, the metal cake-shaped material 10 can be made of steel or copper. In this way, steel material or copper material can be selected as the material of the metal cake-shaped material 10, so that after the metal cake-shaped material 10 is fabricated into the cartridge 1, it can meet the requirements of practical application.

In one embodiment of the present invention, the pickling and soaping S11, S21, S31, S41, S51, and S61 described in step 1 S1 to step 6 S6 are 98% industrial grade sulfuric acid added with 0.1% inhibitor, Pickling at 85°C-75°C for 3-6 minutes, and then soaping with active metal forming lubricant at 91-85°C for 4-6 minutes. In this way, after pickling and applying soap S11 , S21 , S31 , S41 , S51 and S61 , it is convenient to carry out subsequent related production steps.

In one embodiment of the present invention, the cleaning S12, S23, S33, S43, and S53 described in steps 1 S1 to 5 S5 are firstly performed with hot water overflow water and liquid detergent at a temperature of 95°C to 85°C. Perform one cleaning for 3 minutes to 6 minutes, and then use hot overflow water to perform a second cleaning for 1 minute at a temperature of 95°C to 85°C. In this way, after cleaning S12 , S23 , S33 , S43 and S53 , it is convenient to perform subsequent related manufacturing steps.

In an embodiment of the present invention, the annealing S14, S24, S34, S44, and S54 described in the step 1 S1 to the step 6 S6 are annealed at a heating time of 60 minutes to 665°C-655°C. In this way, subsequent related fabrication steps can be facilitated after annealing S14, S24, S34, S44, and S54.

In one embodiment of the present invention, the pressure of the first lengthening s22 is 250T, and the first barrel 11 is lengthened to a second height h2 of 83.2mm~124.6mm at a speed of 30mm/s for 1 second, To form the second barrel 12; the second length s32 is a pressure of 180T, and the second barrel 12 is drawn to a third height h3 of 124.6mm~186mm at a speed of 30mm/s for 1 second, to The third barrel 13 is formed; the pressure of the third length s42 is 150T, and the third barrel 13 is drawn to a fourth height h4 of 186mm~310mm at a speed of 20mm/s for 1 second to form the The fourth cylinder body 14; the pressure of the fourth lead length s52 is 125T, and the fourth barrel 14 is drawn to a fifth height h5 of 310mm~432mm at a speed of 25mm/s for 5 seconds to form the fifth barrel 15; the pressure of the fifth barrel s62 is 80T, And the fifth barrel 15 is elongated to a sixth height h6 of 432 mm˜623 mm at a speed of 80 mm/s every 3 seconds to form the sixth barrel 16 . In this way, the manufacturing yield and dimensional accuracy of the cartridge 1 can be improved.

In one embodiment of the present invention, the heat treatment S56 described in step 6 S6 is a salt bath heat treatment, and includes quenching at 880°C-860°C, primary tempering at 320°C-310°C, and annealing at 545°C-535°C , and secondary tempering at 285℃~275℃. And the turning described in step 6 S6 is to perform plane turning on the bottom of the sixth barrel 16 , and then perform turning on the barrel of the sixth barrel 16 , and perform the turning on the inner hole of the sixth barrel 16 . Turn, and perform chamfering turning on the inner hole of the sixth cylinder body 16 , and then perform thread turning on the inner hole of the sixth cylinder body 16 . In addition, degreasing, rust removal, mouth annealing, surface polishing, anti-rust oil, chamber closing inspection and galvanizing can be carried out after car-making to make the cartridge 1, and the cartridge can be improved 1. Production yield and dimensional accuracy.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be considered to be included within the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

S1: Step 1

S11: Pickling and soaping

S12: Cleaning

S13: flushing

S14: Annealing

S2: Step 2

S21: Pickling and soaping

S22: The first introduction

S23: Cleaning

S24: Annealing

S3: Step 3

S31: Pickling and soaping

S32: The second lead

S33: Cleaning

S34: Annealing

S4: Step 4

S41: Pickling and soaping

S42: The third lead

S43: Cleaning

S44: Annealing

S5: Step 5

S51: Pickling and soaping

S52: The fourth lead

S53: Cleaning

S54: Annealing

S6: Step Six

S61: Pickling and soaping

S62: The fifth lead

S63: Bottom pressing

S64: Stamping

S65: Heat Treatment

S66: Closing work

S67: Bottom Annealed

S68: Top end annealing

Claims (8)

A method for making a cartridge, comprising the following steps: Step 1: providing a metal cake-shaped material, pickling the metal cake-shaped material with soap, then cleaning, and then washing the metal cake-shaped material after cleaning , so that the metal cake-shaped material is formed into a first cylinder with a first height, and then the first cylinder is annealed; step 2: after the first cylinder is pickled and soaped, a first cylinder is carried out. The second barrel is drawn to form a second barrel with a second height, and then the second barrel is cleaned and annealed. The pressure of the first drawing is 250T, and the pressure is 1 The speed of 30mm/s per second leads the first barrel to a second height of 83.2mm~124.6mm to form the second barrel; Step 3: After the second barrel is pickled and soaped, carry out the third step Lengthening the second time to make the second cylinder form a third cylinder with a third height, and then cleaning and annealing the third cylinder, wherein the pressure of the second cylinder is 180T, and the At a speed of 30mm/s for 1 second, the second barrel is lengthened to a third height of 124.6mm~186mm to form the third barrel; Step 4: After the third barrel is pickled and soaped, the third barrel is Lengthening three times to make the third cylinder form a fourth cylinder with a fourth height, and then cleaning and annealing the fourth cylinder, wherein the pressure of the third lengthening is 150T, and the At a speed of 20mm/s for 1 second, the third barrel is lengthened to a fourth height of 186mm~310mm to form the fourth barrel; Step 5: After the fourth barrel body is pickled and soaped, the fourth barrel body is drawn for the fourth time, so that the fourth barrel body forms a fifth barrel body with a fifth height, and then the fifth barrel body is carried out. Cleaning and annealing, wherein the pressure of the fourth drawing is 125T, and the fourth barrel is drawn to a fifth height of 310mm~432mm at a speed of 25mm/s for 5 seconds to form the fifth barrel; and Step 6: After the fifth barrel body is pickled and soaped, the fifth barrel body is extended for the fifth time, so that the fifth barrel body forms a sixth barrel body with a sixth height, and the pressure of the fifth barrel extension is 80T, and the fifth barrel is lengthened to a sixth height of 432mm~623mm at a speed of 80mm/s every 3 seconds to form the sixth barrel, and the bottom of the sixth barrel is pressed and punched A primer hole is formed, and the sixth barrel is heat-treated, and the top end of the sixth barrel is closed, and then the bottom and the top are annealed, and a bullet barrel is made after car processing. . The method for manufacturing a cartridge according to claim 1, wherein the metal cake-shaped material is made of steel or copper. The cartridge manufacturing method according to claim 1, wherein the pickling and soaping described in steps 1 to 6 are 98% industrial-grade sulfuric acid added with 0.1% inhibitor, and carried out at a temperature of 85°C to 75°C for 3 Pickling for 5 minutes to 6 minutes, and then soaping with active metal forming lubricant for 4 minutes to 6 minutes at a temperature of 91°C to 85°C. The method for making a cartridge according to claim 1, wherein the cleaning in steps 1 to 5 is carried out once for 3 minutes to 6 minutes at a temperature of 95°C to 85°C by using hot water overflowing water and liquid detergent first. After cleaning, use hot overflow water for a second cleaning at a temperature of 95°C to 85°C for 1 minute. The method for manufacturing a cartridge according to claim 1, wherein the annealing in steps 1 to 6 is annealed for a heating time of 60 minutes to 665°C-655°C. The method for manufacturing a cartridge according to claim 1, wherein the heat treatment in step 6 is a salt bath heat treatment, and includes quenching at 880°C to 860°C, primary tempering at 320°C to 310°C, and 545°C to 535°C. annealing, and secondary tempering at 285℃~275℃. The method for manufacturing a cartridge according to claim 1, wherein the turning described in step 6 is to perform plane turning on the bottom of the sixth barrel, and then perform turning on the barrel of the sixth barrel, and in the The inner hole of the sixth barrel is turned, and the inner hole of the sixth barrel is chamfered, and then the inner hole of the sixth barrel is turned. The method for making a cartridge according to claim 1, wherein in step 6, the subsequent processing of degreasing, rust removal, mouth annealing, surface polishing, application of anti-rust oil, bore inspection and galvanizing can be carried out after turning, to make the cartridge.

Images