Explosion-proof tool and manufacturing technique thereof

A tool and metal processing technology, applied in the field of explosion-proof tools and its production process, can solve the problems of high performance, low cost and low performance of explosion-proof tools, and achieve the effects of simple production process, increased use range, and rich sources of production raw materials

Inactive Publication Date: 2008-01-23
陈道年
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current explosion-proof tools have the disadvantages of low cost and low performance; high performance and high cost, and provide people with a new material, high-performance explosion-proof tools and their preparation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: the preparation of ring wrench

[0015] 1) Casting: Put 3.6% of titanium, 0.18% of chromium, 0.6% of aluminum and the rest of the copper into a vacuum furnace to melt at 1870°C, keep warm for 10 minutes and then cast in a vacuum state; After cooling, it is out of the furnace; after the casting is completely cooled, the sprue is cut and polished.

[0016] 2) Quenching: Put the cut gate and polished workpiece into a heat treatment furnace and heat it at 870°C for 10 minutes, then put it out of the furnace and quickly put it into a cooling liquid whose medium is clean water at room temperature for rapid cooling.

[0017] 3) Gold processing: The workpiece after quenching treatment is subjected to the following gold processing: broaching plum blossom hole----chamfering.

[0018] 4) Artificial aging treatment: Put the workpiece processed by the above gold into the heat treatment furnace and heat it at 440°C, keep it warm for 2 hours and 30 minutes, and then coo...

Embodiment 2

[0020] Embodiment 2: the preparation of chisel

[0021] 1) Casting: Put 3.8% of titanium, 0.2% of chromium, 0.8% of aluminum and the rest of the copper into a vacuum furnace to melt at 1890°C, keep warm for 12 minutes and then cast in a vacuum state; After cooling, it is out of the furnace; after the casting is completely cooled, the sprue is cut and polished.

[0022] 2) Quenching: Put the cut gate and polished workpiece into the heat treatment furnace, heat at 900°C and keep it warm for 12 minutes, then put it out of the furnace and quickly put it into the cooling liquid with normal temperature clean water for rapid cooling, and the workpiece after quenching treatment After grinding, put the polished workpiece into the heat treatment furnace and heat it at 450°C, keep it warm for 2 hours and 40 minutes, and then cool it with the furnace; the completely cooled workpiece is polished to become the finished chisel. The main properties of the chisel at this time are: the hardnes...

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PUM

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Abstract

The invention relates to an explosion-proof tool and the production technique thereof. The tool is processed by metals with weight per cent of 3.5 per cent to 4 per cent titanium, 0.15 per cent to 0.25 per cent chromium, 0.5 per cent to 1 per cent aluminum and copper as the rest composition. The process method comprises the steps: first, casting. The raw materials are melted in a vacuum furnace at the high temperature of 1880 plus or minus 20 DEG C., and are kept at the temperature for 10 plus or minus 2 the minutes, and then the semi-finished products are cast under the vacuum state; second, quenching. The semi-finished products after being cut the gating and polished are put into a heat treatment furnace and heated at 880 plus or minus 20 DEG C., are kept at the temperature for 10 plus or minus 2 the minutes, and then are placed in the cooling liquid of the normal temperature clear water to be cooled quickly; third, artificial aging processing. The products are put into the heat-treatment furnace, heated at 430 plus or minus 20 DEG C., kept at the temperature for 2 to 3 hours, and then are cooled with the furnace. The invention features the simple production technique and rich raw material sources, and that the performance-price is superior to that of the aluminum bronze explosion-proof tool and the beryllium bronze explosion-proof tool, the hardness is of HRC42 above, the torque value is superior to the national standards A and C series, and the explosion-proof performance meets the related standard class-EXIIC. The invention also processes the diamagnetic performance.

Description

technical field [0001] The invention relates to an explosion-proof tool and its production process. Background technique [0002] At present, domestic explosion-proof tools are mainly made of aluminum bronze or beryllium bronze. The explosion-proof tools made of aluminum bronze materials have low hardness and strength, among which the hardness is above HRC25, and the torque value reaches the B and D series (low series) stipulated in the relevant national explosion-proof tool standards QB / T2613.1-7-2003. The hardness and strength of explosion-proof tools made of beryllium bronze materials are higher than those of aluminum bronze materials, and their hardness and strength are higher. Among them, the hardness is above HRC35, and the torque value meets the relevant national standards for explosion-proof tools QB / T2613.1~7-2003. A and C series (high series). [0003] The disadvantage of aluminum bronze explosion-proof tools is its low performance and short service life; althoug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02B22D21/00C22F1/08
Inventor 陈道年
Owner 陈道年
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