A manufacturing process of an ultra-high-strength ultra-wear-resistant chain

A manufacturing process and ultra-high-strength technology, applied in the direction of manufacturing tools, metal material coating technology, furnaces, etc., can solve the problems that cannot meet the requirements of chain ultra-high strength and ultra-wear resistance at the same time, and achieve high development and application value , the effect of improving strength and improving wear resistance

Inactive Publication Date: 2017-03-15
SHANDONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the fact that the existing technology cannot meet the requirements of the chain for ultra-high strength and ultra-wear resistance at the same time, and to provide a reliable and relatively economical manufacturing process for ultra-high-strength, ultra-wear-resistant chains

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

[0029] A manufacturing process of an ultra-high-strength and ultra-wear-resistant chain, comprising the following steps:

[0030] The first step is to choose 45CrNiMoVA as the manufacturing material for the slag scraper chain and bark stripping chain;

[0031] The second step is to carry out sub-temperature (A1~A3) quenching of the chain formed by the above-mentioned materials;

[0032] The third step is to put the quenched chain into the ion nitriding furnace, and perform ion nitriding treatment at 450°C for 12 hours;

[0033] Step 4 If the ion nitriding furnace has the ability to pass through high-purity nitrogen or high-purity argon for rapid cooling, pass high-purity nitrogen or high-purity argon along with the furnace to rapidly cool the chain; if the ion nitriding furnace does not have the ability to pass through The ability of high-purity nitrogen or high-purity argon for rapid cooling, the chain in the furnace is cooled to room temperature with the ion nitriding furna...

Embodiment 2

[0036] A manufacturing process of an ultra-high-strength and ultra-wear-resistant chain, comprising the following steps:

[0037] The first step is to choose 45CrNiMoVA as the manufacturing material for the slag scraper chain and bark stripping chain;

[0038] The second step is to carry out sub-temperature (A1~A3) quenching of the chain formed by the above-mentioned materials;

[0039] The third step is to put the quenched chain into the ion nitriding furnace, and perform ion nitriding treatment at 455°C for 12.5h;

[0040] Step 4 If the ion nitriding furnace has the ability to pass through high-purity nitrogen or high-purity argon for rapid cooling, pass high-purity nitrogen or high-purity argon along with the furnace to rapidly cool the chain; if the ion nitriding furnace does not have the ability to pass through The ability of high-purity nitrogen or high-purity argon for rapid cooling, the chain in the furnace is cooled to room temperature with the ion nitriding furnace....

Embodiment 3

[0043] A manufacturing process of an ultra-high-strength and ultra-wear-resistant chain, comprising the following steps:

[0044] The first step is to choose 45CrNiMoVA as the manufacturing material for the slag scraper chain and bark stripping chain;

[0045] The second step is to carry out sub-temperature (A1~A3) quenching of the chain formed by the above-mentioned materials;

[0046] The third step is to put the quenched chain into the ion nitriding furnace, and conduct ion nitriding treatment at 460°C for 13 hours;

[0047] Step 4 If the ion nitriding furnace has the ability to pass through high-purity nitrogen or high-purity argon for rapid cooling, pass high-purity nitrogen or high-purity argon along with the furnace to rapidly cool the chain; if the ion nitriding furnace does not have the ability to pass through The ability of high-purity nitrogen or high-purity argon for rapid cooling, the chain in the furnace is cooled to room temperature with the ion nitriding furna...

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
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a manufacturing technique for an ultra-high strength super-wear resistant chain. The manufacturing technique for the ultra-high strength super-wear resistant chain includes steps that (1) using alloy steel as manufacturing material for a submerged chain conveyor chain and a barking chain; (2) carrying out sub-critical (Ac1-Ac3) quenching on the chain processed from said material; (3) placing the quenched chain in a nitriding furnace, and nitriding for 10 to 13 hours at 450 to 600 degrees centigrade; (4) cooling the nitrided chain to the room temperature in the nitriding furnace; (5) heating the cooled chain at 450 to 600 degrees centigrade through an electric box furnace, and cooling quickly. By means of the manufacturing technique for the ultra-high strength super-wear resistant chain, both the breaking stress and wearing resistance of the chain are greatly improved.

Description

technical field [0001] The invention relates to a manufacturing process of a chain, in particular to a manufacturing process of an ultra-high-strength and ultra-wear-resistant chain. Background technique [0002] Mining chains such as slag scraper chains for slag scrapers, bark stripper chains for debarkers, and coal conveying require chains that have both extremely high wear resistance and high strength. However, the carbonitriding process or the single carburizing process currently used in the chain industry cannot satisfy the requirements for ultra-high strength and ultra-wear resistance at the same time. When the wear resistance requirements can be met, the strength cannot meet the requirements; when the strength requirements can be met, the hardness will drop significantly. In addition, the carbonitriding process and the individual carburizing process have high heat treatment temperature, high energy consumption, high production cost, and are not conducive to energy sa...

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 Patents(China)
IPC IPC(8): C21D9/00C21D1/18C23C8/32
Inventor 耿贵立高学平毕见强张爱敏
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap