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What are the performance requirements of cold work die steel?

Cold work molds are molds used for pressure processing or other processing of materials at room temperature. It has a wide variety and complex structure. The mold is subjected to mechanical forces such as compression, stretching, bending, impact, and friction during use. The normal failure modes of cold work die mainly include wear, brittle fracture, bending, seizure, collapse, gnawing, softening, etc. Therefore, cold work die steel is required to have high deformation resistance, fracture resistance, and wear resistance after phase change heat treatment. Abilities such as damage resistance, fatigue resistance, and seizure resistance to ensure that the mold has a certain degree of durability.

2024

07-29

The hardness testing method and instrument selection of mold steel

Die steel is the main material of the mold industry. According to the different service conditions, environment and state of the mold, the mold steel should have different characteristics. In industrial production, the service life of the mold and the precision, quality and appearance performance of the finished parts are related to the design technology and manufacturing accuracy of the mold, as well as the accuracy of the machine tool and the manufacturing operation. The correct selection of mold materials and the correct implementation of the heat treatment process It is also very important. According to the data, the early failure of the mold is about 10% caused by improper material selection and internal defects of the material, and about 49% caused by improper heat treatment.

2024

07-29

What points should be paid attention to when heating cold steel ingots?

The following points should be paid attention to when heating cold steel ingots: 1) Steel ingots are heated in the furnace according to the following three forms. 2) The position where the steel ingot is installed in the furnace should be uniformly heated. The commonly used methods are:

2024

07-29

Surface treatment of plastic mold steel

Surface treatment method: 1. Nitriding treatment 2. Heat treatment 　　 (1) C45 W medium carbon steel 　American standard number: AISI 1050 ~ 1055; Japanese standard number: S50C~ S55C German standard number: 1.1730　. China Carbon Steel or 45# steel is called Ace Steel in Hong Kong. The hardness of this steel is: HB170 ~ HB220, which is cheap and easy to process. It is used as a mold base, top pillar, and some unimportant parts on the market. The general standard formwork adopts this kind of steel; 　　 (two) 40 CrMn Mo 7 pre-hardened plastic mold steel   plastic die steel

2024

07-29

What should I do about the surface gloss defect of the plastic injection mold?

There are many difficulties in plastic injection processing molds. The injection mold consists of two parts: a movable mold and a fixed mold. The production of plastic products requires mold injection molding. The plastic raw materials are injected into the injection mold cavity through the injection molding machine, and the shape is formed after cooling and solidification What should I do if the surface gloss defect of the plastic injection processing mold appears in the mold manufacturing process?

2024

07-29

What are the reasons for the insufficient hardness of the mold after heat treatment?

Hardness is a very important mechanical property index in mold heat treatment, and unqualified hardness is a very serious defect. Zhongshan Fahrenheit mold steel technicians pointed out that after the mold is heat treated, its hardness is insufficient or uneven, which will reduce the wear resistance and fatigue strength of the mold, leading to early failure of the mold and shortening the life of the mold. So, what are the reasons for the insufficient hardness of the mold after heat treatment?hot working die steel

2024

08-28

What are the basic properties of precision plastic mold steel?

Precision plastic molds have lower requirements for material strength and toughness than cold work molds and hot work molds. According to their failure modes and work requirements, their basic performance requirements are summarized as follows:

2024

07-29

What are the types of hot work die steel?

1. Types of hot work die steel: (1) According to purpose: hammer forging die steel, hot top forging die steel, hot extrusion die steel and precision forging die steel, die casting die steel, hot blanking die steel wholesale hot working die steel Manufacturers (2) According to performance: high toughness die steel, high heat strength die steel, super high heat strength die steel, high wear-resistant die steel

2024

07-29

Is it correct that the forging die requires high hardness?

Among users who use hot forging dies, many people like to ask for high hardness, even 52-55HRC. This concept is wrong.

2024

07-29

What is the essential performance of plastic mold steel?

Performance Features 1. wear resistance Wear and tear can lead to loss of die precision, which is an intuitive cause of failure. 2. corrosion resistance

2024

07-29

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Zhejiang Sanmen Taihe Heavy Forging Co., Ltd. is professional China Plastic Die Steel factory and wholesale Plastic Mould Steel manufacturers, welcome to make any information consultation,Quick response and rapid delivery,Diversified products and quality assurance,Accept customization and meet your requirement

Industry Park of Shangkeng, Haiyou Town, Sanmen County, Taizhou City, Zhejiang Province, China.

+86-576-83351788
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taihe@thforging.com 

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