What materials are generally used for mechanical molds, as well as the price

There are many methods of mold classification, which are often used in the past: classification according to the structural form of the mold, such as single-process mold, duplex die, etc.; Classified according to the use object, such as automobile panel mold, motor mold, etc.; Classified according to the nature of processed materials, such as molds for metal products, molds for non-metallic products, etc.; Classified according to mold manufacturing materials, such as cemented carbide molds, etc.; Classified according to the nature of the process, such as drawing die, powder metallurgy die, forging die, etc. Some of these classification methods cannot fully reflect the structure of various molds and the characteristics of the forming process, as well as their use functions.

To this end, a comprehensive classification method based on the process properties and objects of forming processing using dies is adopted, and the dies are divided into: stamping dies (stamping dies), plastic molding molds, die-casting molds, forging molds, metal molds for casting, powders, etc

It depends on what kind of machinery it is used for. Generally, the main die steels are CR12, CR12MOV, H13, 3CR2W8V. **If it is wool, the first two are generally in the tens of dollars, H13 in the sixteenth seventeenth, and 3C2W8V in the twenties.

This is a domestic mold material**. Imported ones are two or three times more expensive. If it's a fine amount, ** is higher.

Huangshi Dongxin Special Steel, specializing in the production of these kinds of die steel, Dongxin Special Steel, quality assurance, quality-oriented, service-oriented!!

Like die steel, there are CR12MOV, CR12, etc. **More than a dozen yuan a kilogram, and more than 30 for a better one.

The selection of aluminum alloy die-casting mold materials should be based on the size of the mold, the complexity of the structure, the requirements of the service life of the mold, and the cost of the mold. Aluminum alloy die-casting mold material selection, generally there are 4 kinds of material selection schemes.

No. 45 steel or tool steel, etc.

Mold commonly used materials according to different uses, categories are also different, it is recommended that you can find professional books to understand or go to professional industries to see, such as mold material network and the like.

You go to the Dragon Kee Group and see for yourself.

Commonly used materials for molds: T7, T8, T12, 6CrW2Si, 5CrMnMo, Cr12, Cr12MoV. The use of the mold is different, and the mold material used is different.

1. The mold is a tool that makes the blank into a workpiece with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, as well as engineering plastics, rubber, ceramics and other systems.

In the molding process of compression molding or injection molding. The die has a specific profile or cavity shape, and the application of a profile shape with a cutting edge allows the blank to be separated (punched) according to the shape of the contour line. The shape of the inner cavity is applied so that the blank can be obtained.

The corresponding three-dimensional shape.

2. The mold generally includes two parts: the moving mold and the fixed mold (or punch and concave mold), which can be divided or combined. When separated, the workpiece is taken out, and when closed, the blank is injected into the mold cavity for forming. The mold is fine.

Dense tools, complex shape, bear the swelling force of the blank, have high requirements for structural strength, stiffness, surface hardness, surface roughness and machining accuracy, and the development level of mold production is one of the important symbols of the level of machinery manufacturing.

Commonly used plastic mold steels are: S, NAK80, NAK55, DAC, P20

Cold work die steels are commonly used: GS2379, DC53, DC11, SKD11, A2

Hot work die steel is commonly used: DH2F, GS die-casting steel is commonly used: GS2344, DAC, DAC55, SKD61 oil steel:

sgt、acd37、sks
、gs2510、df-2、df-3

High speed steel: SKH-9,

Die steel can be divided into three categories according to its use:1Cold work die steel.

2.Hot work die steel.

3.Plastic mold steel.

Features: Cold work die steel focuses on hardness.

Abrasion resistance. The carbon content is high, and the alloying elements are mainly to increase hardenability and improve wear resistance.

Hot work die steel has appropriate hardness requirements, focusing on red hardness and thermal conductivity.

wear resistance, so low carbon content, alloying elements to:

Increase hardenability and improve wear resistance.

Red hardness is dominant.

Plastic mold steel is corrosion-resistant.

Abrasion resistance. The resistance to thermal fatigue is very good, and the hardness of the material is uniform. Superior polishing performance and low impurity content.

The production cycle is stable.

Take you to know the materials used to make molds, and it is very important to do a good job in mold selection.

There are mainly plastic molds.

Cast iron molds. Stainless steel is more commonly used.

Depending on what you've used it, plastic is mostly household. I don't know what you're up for.

Abstract:Through the study of automobile mold design standards, the performance of several commonly used mold materials, as well as the comparison of the cost and service life of mold materials, are introduced. The results show that the reasonable selection of mold materials will reduce costs, shorten the manufacturing cycle, facilitate maintenance, and reduce the labor intensity of fitters.

With the continuous development of the mold industry, the mold is more and more widely used in the production of weapons industry, machinery industry and daily necessities. China's mold industry has entered a period of rapid development, but there is still a big gap between the manufacturing level and the use performance of molds compared with developed countries in the world.

More than 90% of Hyundai's body-in-white parts are mass-produced by stamping dies.

According to the service life requirements of automobile cold stamping die: under normal use and maintenance, 500,000 qualified parts can be produced in multiple batches and small batches. Therefore, the performance and quality of mold materials have a great impact on the service life of molds.

Therefore, the research and development of mold materials has been valued by die steel manufacturers and has been rapidly developed.

1.The current state of mold materials.

In recent years, China's die steel production technology has developed rapidly, and the materials used to manufacture cold stamping dies are mainly divided into the following categories:

1) High-carbon and low-alloy cold work die steel, such as: 9sicr, 7crsimnmov, 8cr2mnwmovs, etc.

2) Anti-wear cold work die steel, such as: 6Cr4W3Mo2VNB, Cr12, Cr12MoV, Cr12Mo1V1, etc.

3) Impact-resistant cold work die steel, such as: 4CrW2Si, 5CrW2Si, 6CrW2Si, etc.

4) High-speed steel for cold work molds, such as: W6Mo5Cr4V2, W12Mo3Cr4V3N, W9Mo3Cr4V, etc.

2.The performance of automotive mold materials.

1) Requirements for the use of punching die materials.

The material used for the thin plate punching die is required to have high wear resistance and hardness, and the thick plate punching die is required to have high wear resistance and compressive yield point, in order to prevent the die from breaking or chipping, it should also have high breaking resistance and toughness.

2) Requirements for the use of drawing and shaping die materials.

The material of the mold working parts is required to have high wear resistance and hardness, certain strength and toughness, good cutting performance, good anti-adhesion (anti-seizure), and small deformation during heat treatment.

According to the current situation of molds for stamping parts produced by automobile factories, the main materials used in automobile molds are: molybdenum-chromium cast iron, CR12MOV, and as-cast air-cooled steel.

Molybdenum chromium cast iron: belongs to a kind of high chromium white cast iron in the nickel hard white cast iron system, because its eutectic structure is composed of an M7C3 type carbide and other austenite transformants, its matrix annealed into martensitic can show high wear resistance, at the same time, the chromium it contains can significantly improve the strength, hardness and wear resistance, manganese can significantly improve the toughness, and molybdenum can make the grain refinement of steel, improve hardenability. The heat treatment method is surface quenching, which saves a lot of heat treatment time, and the hardness is HRC50 after quenching

Take you to know the materials used to make molds, and it is very important to do a good job in mold selection.