Focus on Various Casting Products
YONGXIN
Focus on Various Casting Products

Yongxin Special Steel has investment casting, special casting, heat treatment, special welding and various machining equipment

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Yongxin · Products

Focus on wear-resistant, heat-resistant and corrosion-resistant steel, ball mill accessories, pump valve machinery manufacturing, processing, etc————

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Yongxin · About us

It integrates science, technology, research and development, design, processing and manufacturing, installation, commissioning and service into one————

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2004

Date of incorporation

Date of incorporation

3200

Registered capital

Registered capital

90

Existing staff

Existing staff

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Technical professional · strict quality

It mainly serves electric power, metallurgy, aerospace, petrochemical and other industries. Yongxin is willing to cooperate with friends and users at home and abroad in a wider range of fields, and work together to create prosperity.

TEL: 86-523-84608666

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Yongxin · News

Yongxin Company is willing to cooperate with friends and users at home and abroad in a wider range of fields, work together to create prosperity————

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12

2018-03

Performance requirements for cold work die steel

Fracture resistance One time brittle fracture resistance: the indicators that can characterize the one-time brittle fracture resistance are the first impact fracture work, compressive strength and bending strength. The above indexes can reflect the breaking resistance of the punch under overload. Fatigue fracture resistance: It is characterized by the number of fracture cycles displayed under a certain cyclic load or the load value that causes the sample to fracture under a specified number of cycles. It can be reflected by several indicators, such as small energy multiple impact fracture work or multiple impact fracture life, tension compression fatigue strength or fatigue life, contact fatigue strength or contact fatigue life. Crack fracture resistance: when there are microcracks in the mold, the fracture resistance is greatly reduced. Therefore, the fracture resistance of the cracked body can not be evaluated by various fracture resistances measured by smooth specimens. According to the theory of fracture mechanics, the fracture toughness index can be used to characterize the fracture resistance of crack bodies.

12

2018-03

Wear resistant alloy steels are classified according to the content of alloy elements

1. According to the content of alloy elements 1) The total content of alloy elements in low alloy steel is less than or equal to 5%; 2) The total content of alloy elements in medium alloy steel is between 5% and 10%; 3) The total content of alloy elements in high alloy steel shall not be less than 10%; 2. Classified according to the types of alloy elements There are chrome steel, manganese steel, chrome manganese steel, chrome nickel steel, chrome nickel molybdenum steel, silicon manganese molybdenum vanadium steel, etc. 3. By main purpose (1) Structural steel 1) Structural steel for building and engineering 2) Structural steel for machine building (2) Tool steel (3) Special performance steel

12

2018-03

Function of bimetal liner

Function of lining plate: 1. Lifting the grinding medium -- balls and sections 2. For grinding 3. Protect the mill barrel The selection of various lining plates mainly considers the lifting effect on the grinding medium and the running track of the medium. Lining plates are made of chromium molybdenum alloy steel, medium alloy steel, high chromium cast iron, manganese steel, rubber, polyurethane, etc. The shapes are convex, wavy, angular spiral, etc. When mainly crushing, the liner plate is required to have a strong lifting capacity for the grinding body, and the liner plate should have good impact resistance. The high manganese steel ZGMn13 has sufficient impact resistance toughness, but it is not wear-resistant and easy to deform. Now, most of the liner plates have been replaced by bimetallic liner plates. Compared with several wear-resistant materials, the bimetal lining plate has better performance and longer service life.

05

2020-04

Why is Jiangsu bimetallic liner popular among enterprises?

The base plate of Jiangsu bimetallic liner is made of low carbon steel or low alloy, stainless steel and other ductile materials, reflecting the advantages of bimetallic liner. The wear-resistant layer resists the wear of wear media, and the base plate bears the load of media. Therefore, the bimetallic liner has good impact resistance, and can withstand the impact and wear of high drop in the material conveying system. The reasons why Jiangsu bimetallic liner is popular among enterprises are as follows: 1. Good heat resistance The bimetal composite liner alloy wear-resistant layer is recommended to be used under the working condition of ≤ 600 ℃. If vanadium, molybdenum and other alloys are added to the bimetal liner alloy wear-resistant layer, it can withstand the high-temperature wear of ≤ 800 ℃. The recommended temperature is as follows:; Ordinary carbon steel base plate is recommended to be used under the working condition not higher than 380 ℃; Low alloy heat-resistant steel plate (15CrMo, 12Cr1MOV, etc.) base plate is recommended to be used under the working condition not higher than 540 ℃; The heat-resistant stainless steel substrate is recommended to be used under the working condition not higher than 800 ℃. 2. Good corrosion resistance The alloy layer of Jiangsu bimetallic liner plate contains a high percentage of metal chromium, so it has certain rust prevention and corrosion resistance. It is used in coal chute and hopper to prevent coal sticking. High price performance ratio The bimetal lining plate has a high performance price ratio. Compared with ordinary steel plate, the service life can be increased by more than 10 times, which greatly reduces the maintenance cost and shutdown loss. Therefore, the performance price ratio of bimetal composite lining plate is 3-5 times that of ordinary materials. All kinds and specifications of bimetal wear-resistant plates are complete, and there are many varieties, which have become a series of commodities. The thickness of the wear-resistant alloy layer is 3~20mm, and the thickness of the bimetallic lining plate is 6mm, with unlimited thickness. At present, standard bimetal liner can provide 3000 × 1500mm, can also be customized according to the drawing size according to user requirements. Lining plates are now divided into three types: ordinary type, impact resistant type and high temperature resistant type. Ordering high temperature wear-resistant and impact resistant composite steel plates shall be specified separately. 3. Convenient processing performance Jiangsu bimetallic liner can be cut, bent or curled, welded and drilled. It can be processed into various parts that can be processed by ordinary steel plates. The cut bimetal backing plate can be welded into various engineering structures or parts. It can be welded, has good wear resistance and is widely favored.

Performance requirements for cold work die steel

Performance requirements for cold work die steel

Fracture resistance One time brittle fracture resistance: the indicators that can characterize the one-time brittle fracture resistance are the first impact fracture work, compressive strength and bending strength. The above indexes can reflect the breaking resistance of the punch under overload. Fatigue fracture resistance: It is characterized by the number of fracture cycles displayed under a certain cyclic load or the load value that causes the sample to fracture under a specified number of cycles. It can be reflected by several indicators, such as small energy multiple impact fracture work or multiple impact fracture life, tension compression fatigue strength or fatigue life, contact fatigue strength or contact fatigue life. Crack fracture resistance: when there are microcracks in the mold, the fracture resistance is greatly reduced. Therefore, the fracture resistance of the cracked body can not be evaluated by various fracture resistances measured by smooth specimens. According to the theory of fracture mechanics, the fracture toughness index can be used to characterize the fracture resistance of crack bodies.

2022-12-13

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