Novel metal surface heat treatment method of oozing nanometer diamond alkene

A technology of nanodiamondene and heat treatment method, applied in metal material coating process, coating, solid-state diffusion coating and other directions, can solve the problems of complex processing process, high equipment requirements, inconvenient machining, etc., and achieves simple and feasible process, Wide application range and convenient finishing effect

Inactive Publication Date: 2017-05-10
HENAN YUXING MICRON DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] These treatment methods have some disadvantages, such as complex treatment process, high equipment requirements, and some are toxic and harmful; the penetration rate is slow, the pe

Method used

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  • Novel metal surface heat treatment method of oozing nanometer diamond alkene
  • Novel metal surface heat treatment method of oozing nanometer diamond alkene
  • Novel metal surface heat treatment method of oozing nanometer diamond alkene

Examples

Experimental program
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Example Embodiment

[0029] Example 1

[0030] A new type of metal surface heat treatment method with nanodiamondene infiltrating, including the following steps:

[0031] 1) The outer surface of the metal parts to be heat treated are covered with a layer of 4mm thick nanodiamondene; first, a clean container that can be sealed is needed, and 4mm thick nanodiamondene is placed on the bottom of the container, and then the metal zero Parts, and then spread a layer of nanodiamondene and then put the parts until the entire container is filled.

[0032] 2) Vacuum the system and introduce reducing protective gas, repeat 3 times, the purpose is to minimize the existence of oxidizing gas;

[0033] 3) Raise the temperature to 100°C above the austenite transformation temperature and keep it for 10 hours, then cool to room temperature with the furnace;

[0034] 4) Take out the metal parts and quench and temper at low temperature. The quenching temperature is the austenite transformation temperature and the low temperat...

Example Embodiment

[0042] Example 2

[0043] A new type of metal surface heat treatment method with nanodiamondene infiltrating, including the following steps:

[0044] 1) The outer surface of the metal parts to be heat treated are all wrapped with a layer of 5mm thick nanodiamondene; first, a clean container that can be sealed is needed, and 5mm thick nanodiamondene is laid on the bottom of the container, and then the metal zero Parts, and then spread a layer of nanodiamondene and then put the parts until the entire container is filled.

[0045] 2) Vacuum the system and introduce reducing protective gas, repeat 3 times, the purpose is to minimize the existence of oxidizing gas;

[0046] 3) Raise the temperature to 150°C above the austenite transformation temperature and keep it for 1-20h, then cool to room temperature along with the furnace;

[0047] 4) Take out the metal parts and quench and temper at low temperature. The quenching temperature is 50℃ above the austenite transformation temperature, and ...

Example Embodiment

[0055] Example 3

[0056] A new type of metal surface heat treatment method with nanodiamondene. The difference is that in step 1), the outer surface of the metal parts to be heat-treated is covered with a layer of nanodiamondene with a thickness of 4mm; in step 3) the temperature is raised to Austenite Body transition temperature, the rest is the same as in Example 1.

[0057] 1. Experiment and performance testing

[0058] The alloy tool steel Cr12MoV was selected as the test object, and the nano-diamondene treatment and the common carburizing process were carried out according to the present invention, and then their main performance indexes were tested. The results are as follows:

[0059] 1.1 Change in depth of permeable layer with time

[0060] Infiltrate the two samples for 1h, 3h, 5h, 10h, 20h and 50h, and then detect the depth of the seepage layer, and the relationship between the depth of the seepage layer and the penetration time is as follows figure 1 As shown, curve A repre...

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Abstract

A novel metal surface heat treatment method of oozing nanometer diamond alkene comprises the following steps that 1, the outer surface of a metal part to be subjected to heat treatment is coated with a layer of nano diamond alkene with the thickness of 3-5 mm; 2, a system is vacuumized, reducible protection gas is led, and the operation is repeated for 2-3 times; 3, heating is performed to reach austenite transformation temperature of 0-150 DEG C or above, heat preservation is performed for 1-20 hours, then cooling is performed along with a furnace to reach room temperature; 4, the metal part is taken out and is subjected to quenching and low-temperature tempering. A metal material made from the oozing nanometer diamond alkene prepared by adopting the novel metal surface heat treatment method is high in hardening capacity, the hardening capacity is about 10% higher than that of common carburizing treatment, the abrasion resistant can be up to more than 5 times of the abrasion resistance of a common carburizing part. A permeating layer is deep, the thickness can be up to 40 mm or above, the permeating speed is high, the average permeating speed can be up to about 1.5 mm/h, the permeating layer changes in a gradient mode, is free of an obvious interface, is high in bonding power, does not shed and facilitate follow-up fine machining. The process is simple and feasible, wide in application range, environmentally friendly and free of pollution.

Description

Technical field [0001] The invention belongs to the technical field of surface heat treatment of metal materials, and specifically relates to a novel metal surface heat treatment method of nanodiamondene infiltration. Background technique [0002] Abrasion is one of the main forms of failure of metal materials. There will be abrasion where there is contact and relative movement. Long-term wear will cause the failure of parts. In the light of the need to replace parts, it will cause equipment damage or even casualties. Friction reduction is an eternal research topic. Because wear generally occurs on the surface of the material, how to improve the wear resistance of the material surface is an important way to reduce wear. [0003] At this stage, the surface treatment methods of materials include: coating, plating and heat treatment, among which heat treatment is a main method to improve the wear resistance of metal materials. The principle is to improve the performance by changing t...

Claims

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Application Information

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IPC IPC(8): C23C8/64
CPCC23C8/64
Inventor 张洪涛杨晋中尹维召武艳强李盟
Owner HENAN YUXING MICRON DIAMOND CO LTD
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