Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Oxidation and decarbonization preventing treatment process for workpiece

A treatment process and anti-oxidation technology, which is applied in the field of materials for metal heat treatment process, can solve the problems affecting the surface and overall quality of the workpiece, and reduce the hardness of the workpiece surface, so as to reduce the machining allowance, have good coating properties, and reduce the descaling process. Effect

Inactive Publication Date: 2015-12-23
JINAN HAOZE ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In an oxidizing atmosphere, oxidation and decarburization of the surface and surface layer of steel workpieces will cause the hardness of the workpiece surface to decrease, and the workpiece will be fatigued and damaged early, which will affect the surface and overall quality of the workpiece. Oxidative decarburization on the surface of the workpiece is generally unavoidable. How to realize it in an ordinary electric furnace The non-oxidative decarburization treatment of workpieces is a problem that the industry has been pursuing to solve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0022] A kind of workpiece anti-oxidation decarburization treatment process of the present invention comprises the following steps:

[0023] (1) Clean the surface of the workpiece to be heat treated;

[0024] (2) Apply the first coating evenly on the surface of the workpiece;

[0025] (3) After the first coating is dry, apply the second coating evenly on the surface of the workpiece;

[0026] The first coating consists of Na by weight ratio 2 O nSiO 2 35 parts, Al 2 o 3 10 parts, Cr 2 o 3 15 parts, NaF15 parts. Among them, Na 2 O nSiO 2 Among them, n is 1.5-3.

[0027] The first coating thickness was 2 mm.

[0028] The second coating is composed of 10 parts of SiC, 30 parts of graphite powder and 40 parts of polyinternal olefin by weight.

[0029] The graphite powder is 600 mesh.

[0030] The second coating thickness was 1.5 mm.

[0031] The process of the present invention is used to protect the workpiece, put it into the furnace and heat it to austenitization, ...

Embodiment 2

[0033] A kind of workpiece anti-oxidation decarburization treatment process of the present invention comprises the following steps:

[0034] (1) Clean the surface of the workpiece to be heat treated;

[0035] (2) Apply the first coating evenly on the surface of the workpiece;

[0036] (3) After the first coating is dry, apply the second coating evenly on the surface of the workpiece;

[0037] The first coating consists of Na by weight ratio 2 O nSiO 2 50 parts, Al 2 o 3 40 parts, Cr 2 o 3 20 parts, NaF20 parts composition. Among them, Na 2 O nSiO 2 Among them, n is 1.5-3.

[0038] The thickness of the first coating was 1 mm.

[0039] The second coating is composed of 15 parts of SiC, 50 parts of graphite powder and 60 parts of polyinternal olefin by weight.

[0040] The graphite powder is 600 mesh.

[0041] The second coating thickness was 2.5mm.

[0042] The process of the present invention is used to protect the workpiece, put it into the furnace and heat it to...

Embodiment 3

[0044] A kind of workpiece anti-oxidation decarburization treatment process of the present invention comprises the following steps:

[0045] (1) Clean the surface of the workpiece to be heat treated;

[0046] (2) Apply the first coating evenly on the surface of the workpiece;

[0047] (3) After the first coating is dry, apply the second coating evenly on the surface of the workpiece;

[0048] The first coating consists of Na by weight ratio 2 O nSiO 2 30 parts, Al 2 o 3 20 parts, Cr 2 o 3 10 parts and 10 parts of NaF. Among them, Na 2 O nSiO 2 Among them, n is 1.5-3.

[0049] The thickness of the first coating was 1 mm.

[0050] The second coating is composed of 5 parts of SiC, 20 parts of graphite powder and 20 parts of polyinternal olefin by weight.

[0051] The graphite powder is 800 mesh.

[0052] The second coating thickness was 3mm.

[0053] The process of the present invention is used to protect the workpiece, put it into the furnace and heat it to austeni...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an oxidation and decarbonization preventing treatment process for a workpiece. A double-layer coating is adopted to carry out an oxidation and decarbonization preventing treatment process, so that oxidation and decarbonization during thermal treatment is greatly reduced; after the workpiece is heated, the coating can be automatically peeled off from the surface of a basal body; and the oxidation and decarbonization preventing treatment process is simple and convenient in operation, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of materials for metal heat treatment processes, in particular to an anti-oxidation and decarburization treatment process for workpieces. Background technique [0002] In an oxidizing atmosphere, oxidation and decarburization of the surface and surface layer of steel workpieces will cause the hardness of the workpiece surface to decrease, and the workpiece will be fatigued and damaged early, which will affect the surface and overall quality of the workpiece. Oxidative decarburization on the surface of the workpiece is generally unavoidable. How to realize it in an ordinary electric furnace The non-oxidative decarburization treatment of workpieces is a problem that the industry has been pursuing to solve. Contents of the invention [0003] The object of the present invention is to provide an anti-oxidation and decarburization treatment process for workpieces aiming at the above-mentioned defects. The inven...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/70C21D3/04
Inventor 冉德焕
Owner JINAN HAOZE ENVIRONMENTAL PROTECTION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com