阅读说明：本技术 一种用于合金构件的表面热处理工艺 (Surface heat treatment process for alloy component ) 是由 陈新 韩长青 王国华 于 2019-10-22 设计创作，主要内容包括：一种用于合金构件的表面热处理工艺,所述工艺包括以下步骤：乙醇清洗去除表面油污；在加热炉腔内对金属件升温预热处理,直至温度达到要求；在烘干炉中对金属件加温烘干；涂覆有机水性涂料；将金属工件放到置入淬火介质中淬火,先进行预热处理,然后进行淬火处理,淬火处理后,将金属工件从真空淬火炉中取出,进行回火处理,将完成真空回火的金属工件从水池中取出,利用深冷设备对回火后的金属工件进行深冷处理,本发明一种用于合金构件的表面热处理工艺,有零件力学性能好,大大提高产品质量和稳定性,生产成本低的优点,减少金属工件热处理时的氧化、脱碳的情况,保证金属工件产品质量,减少原料损失。(A surface heat treatment process for an alloy component, the process comprising the steps of: cleaning with ethanol to remove oil stains on the surface; heating and preheating the metal piece in a heating furnace cavity until the temperature meets the requirement; heating and drying the metal piece in a drying furnace; coating an organic water-based paint; the surface heat treatment process for the alloy member has the advantages of good mechanical property of parts, great improvement of product quality and stability and low production cost, reduces the oxidation and decarburization conditions of the metal workpiece during heat treatment, ensures the product quality of the metal workpiece and reduces the loss of raw materials.)

1. A surface heat treatment process for an alloy component, characterized in that it comprises the following steps

(1) Cleaning and descaling: cleaning with ethanol to remove oil stains on the surface;

(2) preheating a workpiece: heating and preheating the metal piece in a heating furnace cavity until the temperature meets the requirement;

(3) heating and drying: heating and drying the metal piece in a drying furnace;

(4) surface treatment: coating organic water-based paint on the metal piece;

(5) vacuum quenching, namely putting the metal workpiece into a quenching medium for quenching; preheating, quenching, and taking out the metal workpiece from the vacuum quenching furnace

(6) Vacuum tempering, namely putting the metal workpiece into a vacuum tempering furnace for tempering treatment,

(7) cryogenic cooling: and taking the metal workpiece after the vacuum tempering out of the water pool, and carrying out cryogenic treatment on the tempered metal workpiece by using cryogenic equipment to finish the surface heat treatment of the alloy member.

2. A surface heat treatment process for an alloy structural member according to claim 1, wherein: in the cleaning and descaling process in the step (1), ethanol with the concentration of 25% is adopted for cleaning.

3. A surface heat treatment process for an alloy structural member according to claim 1, wherein: the temperature of the heating and drying treatment process in the step (3) is 200 ℃ and 250 ℃, and the time is 45-60 minutes.

4. A surface heat treatment process for an alloy structural member according to claim 1, wherein: the organic water-based paint in the surface treatment process in the step (4) is a mixture of a glass protective lubricant and solvent ethanol.

5. A surface heat treatment process for an alloy structural member according to claim 1, wherein: the quenching medium in the vacuum quenching process in the step (5) is nitrogen, and the quenching time is 15-20 minutes.

6. A surface heat treatment process for an alloy structural member according to claim 1, wherein: the tempering temperature in the vacuum tempering process in the step (6) is 750-.

Technical Field

The invention relates to a surface heat treatment process for an alloy component, and relates to the field of heat treatment of metal pieces.

Background

The metal material is heated at high temperature in the heat treatment process, and the high-temperature heating can cause the oxidation, decarburization and other changes of metal pieces, so that the fatigue, strength, impact and wear resistance of the metal are reduced, and the quality of parts is influenced.

The existing metal workpiece heat treatment process often has the defects of metal workpiece deformation, oxidation corrosion and the like, and has the disadvantages of large equipment investment, complex process, high heat treatment cost, difficult control and incapability of wide application. The heat treatment protective coating commonly used at present also has single performance, and the protection operation is not ideal enough.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the surface heat treatment process for the alloy member, aiming at the defects of the prior art, the surface heat treatment process has the advantages of good mechanical property of parts, great improvement on the product quality and stability and low production cost, reduces the oxidation and decarburization conditions of the metal workpiece during heat treatment, ensures the product quality of the metal workpiece and reduces the loss of raw materials.

A surface heat treatment process for an alloy component, the process comprising the steps of

(1) Cleaning and descaling: cleaning with ethanol to remove oil stains on the surface;

(2) preheating a workpiece: heating and preheating the metal piece in a heating furnace cavity until the temperature meets the requirement;

(3) heating and drying: heating and drying the metal piece in a drying furnace;

(4) surface treatment: coating organic water-based paint on the metal piece;

(5) vacuum quenching, namely putting the metal workpiece into a quenching medium for quenching; preheating, quenching, and taking out the metal workpiece from the vacuum quenching furnace

(6) Vacuum tempering, namely putting the metal workpiece into a vacuum tempering furnace for tempering treatment,

(7) cryogenic cooling: and taking the metal workpiece after the vacuum tempering out of the water pool, and carrying out cryogenic treatment on the tempered metal workpiece by using cryogenic equipment to finish the surface heat treatment of the alloy member.

In the cleaning and descaling process in the step (1), ethanol with the concentration of 25% is adopted for cleaning.

The temperature of the heating and drying treatment process in the step (3) is 200 ℃ and 250 ℃, and the time is 45-60 minutes.

The organic water-based paint in the surface treatment process in the step (4) is a mixture of a glass protective lubricant and solvent ethanol.

The quenching medium in the vacuum quenching process in the step (5) is nitrogen, and the quenching time is 15-20 minutes.

The tempering temperature in the vacuum tempering process in the step (6) is 750-.

Has the advantages that: the parts produced by the surface heat treatment process have the advantages of good mechanical property of the parts, great improvement on the product quality and stability, low production cost, reduction of the oxidation and decarburization conditions of the metal workpiece during heat treatment, guarantee of the product quality of the metal workpiece and reduction of the loss of raw materials.

Detailed Description

The present invention will be described in further detail by way of examples.