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Automobile die manufacturing process

A manufacturing process and a technology for automobile molds, applied in the field of automobile mold manufacturing technology, can solve the problems of reducing the economic benefits of automobile mold manufacturers, long production cycle, poor use strength, etc., to shorten the production cycle, improve the service life, and improve the use strength. Effect

Inactive Publication Date: 2017-05-31
JIANGSU YUYAN MOLDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the poor strength, poor wear resistance and long production cycle of automobile molds are the fatal injuries of domestic automobile molds, which reduce the economic benefits of automobile mold manufacturers

Method used

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  • Automobile die manufacturing process
  • Automobile die manufacturing process

Examples

Experimental program
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Effect test

Embodiment 1

[0017] A process for making automobile molds, the specific steps are as follows:

[0018] Step 1: Put the mold steel in a melting furnace, add silicon carbide fiber with a weight of 1% of the mold steel and glass fiber with a weight of 3% of the mold steel into the melting furnace, and put the mixture in the melting furnace Heat until the die steel is completely austenitized, hold for 5 hours, cool the furnace to 280°C, hold for 3 hours, then heat to 650°C, hold for 10 hours, cool to 400°C at a rate of 43°C / hour, and then at 20°C Cool to room temperature at a rate of 1 hour per hour, heat the mixture to 980°C and keep it for 1 hour. After the oil cools to 75°C, reheat to 680°C and keep it for 3 hours, then water cooling; after water cooling, use low temperature tempering treatment, and then The head of the mixture is heated to 280°C for 4 hours, and then spray cooling is performed. The tail of the mixture is held at 900°C for 6 hours, then air-cooled. Finally, the middle part of ...

Embodiment 2

[0025] A process for making automobile molds, the specific steps are as follows:

[0026] Step 1: Put the mold steel in a melting furnace, and add silicon carbide fiber that weighs one-fifth of the mold steel and glass fiber that weighs one-fifth of the mold steel into the melting furnace. The mixture is heated until the mold steel is completely austenitized, kept for 5.5 hours, the furnace is cooled to 295°C, kept for 4 hours, then heated to 675°C, kept for 12 hours, cooled to 400°C at a rate of 43°C / hour, and then Cool to room temperature at a rate of 20°C / hour, heat the mixture to 980°C and keep it for 1.5 hours. After oil cooling to 60°C, reheat to 695°C and keep it for 5 hours, then water cooling; after water cooling, use low temperature tempering treatment , Then heat the head of the mixture to 330°C for 4.5 hours, and then spray cooling treatment. The tail of the mixture is held at 960°C for 6 hours and then air-cooled. Finally, the middle part of the mixture is heated to ...

Embodiment 3

[0033] A process for making automobile molds, the specific steps are as follows:

[0034] Step 1: Put the mold steel in a melting furnace, and add silicon carbide fiber with a weight of one twentieth of the mold steel and glass fiber with a weight of 3% of the mold steel into the melting furnace. The mixture is heated until the mold steel is completely austenitized, kept for 6 hours, the furnace is cooled to 320°C, kept for 5 hours, then heated to 690°C, kept for 15 hours, cooled to 400°C at a rate of 43°C / hour, and then heated to 20°C. Cool to room temperature at a rate of ℃ / hour, heat the mixture to 980℃ and keep it for 1.5 hours. After oil cooling to 80℃, reheat to 710℃ and keep it for 4 hours, then water cooling; after water cooling, use low temperature tempering treatment, and then Heat the head of the mixture to 360°C for 5 hours, and then spray cooling. The tail of the mixture is held at 1020°C for 8 hours, then air-cooled. Finally, the middle part of the mixture is heated...

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Abstract

The invention discloses an automobile die manufacturing process which comprises the following steps: 1, putting die steel into a smelting furnace, adding silicon carbide fiber and glass fiber into the smelting furnace, heating a mixture in the smelting furnace, and then carrying out a series of thermal treatment; 2, placing the mixture in the smelting furnace into liquid nitrogen for treatment for 3 to 6 hours, and carrying out carburizing treatment on the surface of the mixture; 3, designing the shape and the size of a die through three-dimensional software; 4, machining the die steel through a numerical control machine tool, and polishing the excircle through a grinding machine to obtain the smoothness and the size of the die; 5, treating the machined die; and 6, carrying out finish milling and die repairing on the die subjected to thermal treatment to obtain a finished product. The manufacturing process disclosed by the invention is simple; the production period of the existing automobile die is greatly shortened; the manufactured die is high in use strength and high in wear resistance and use flexibility; and the service life of the product is greatly prolonged.

Description

Technical field [0001] The invention relates to the field of automobile molds, in particular to a manufacturing process of automobile molds. Background technique [0002] With the development of the economy and the improvement of people's living standards, more and more people have their own private cars, and cars have become a daily means of transportation for people. A car is a vehicle that can be driven by its own power and does not need to be erected on rails or electric power. Automobiles are classified according to their uses. They can be divided into general transportation vehicles, special-purpose vehicles and special-purpose vehicles. General-purpose vehicles include cars, passenger cars, and trucks. Special-purpose vehicles include special-purpose vehicles for work and special-purpose vehicles. Special-purpose vehicles include competition vehicles and entertainment vehicles. car. With the development of industrialization, people use the method of subassembly and assem...

Claims

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Application Information

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IPC IPC(8): C22C49/08C22C49/14C22C47/08C21D1/18C22C101/14
CPCC22C49/08C21D1/18C22C47/08C22C49/14
Inventor 孙从贵康冬平杭霖生
Owner JIANGSU YUYAN MOLDING CO LTD
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