Wear-resistant Steel Castings

There are many kinds of wear-resistant steel, which can be roughly divided into high manganese steel, medium and low alloy wear-resistant steel, chrome-molybdenum-silicon-manganese steel, cavitation-resistant steel, wear-resistant steel and special wear-resistant steel. Some general alloy steels such as stainless steel, bearing steel, alloy tool steel and alloy structural steel are also used as wear-resistant steel under specific conditions.

Wear-resistant steels include:

1. High manganese steel;

2. Low carbon chrome steel;

3. Stainless steel;

4. High carbon low alloy steel;

5. Medium carbon steel;

6. Medium carbon low alloy steel;

7. Low carbon alloy steel;

8. Chromium molybdenum silicon manganese steel;

9. Cavitation-resistant steel;

10. Bearing steel.

After more than ten years of precipitation, Qinhuangdao Zhongwei Precision Machinery Co., Ltd. has rich production experience in water glass lost wax precision casting, lost foam precision casting technology, silica sol precision casting technology, and shell sand casting technology. We expect manufacturers from all over the world to consult and negotiate business.

Product Description

Wear-resistant steel castings base case

1.Implementation standards: The company strictly implements ISO9001 & TS 16949 certification.

2. Product material standards: ISO, GB, ASTM, SAE, ISO, EN, DIN, JIS, BS

3. Main processes: sand casting, silica sol investment casting, water glass investment casting,shell casting,deburring, sand blasting, machining, heat treatment, leak testing, surface treatment, etc.

4. Available materials:

High manganese steel, high chromium steel, high nickel steel, carbon steel, alloy steel, stainless steel, gray iron, cast iron, cast steel, cast aluminum, cast copper, etc. can be customized according to customer requirements.

Wear-resistant Steel Castings Classification

Wear-resistant steel is a kind of special steel. There are many types of wear-resistant steel. Due to the difference in chemical composition, heat treatment and hardness of wear-resistant steel, its source is very convenient and its performance is excellent, so it has a wide range of uses and is widely used in mining machinery, construction machinery, Agricultural machinery, various building materials, electrical machinery, railway transportation and coal mining and transportation, etc. Before using it, we need to know, what is the difference between different types of wear-resistant steel?

What types of wear-resistant steel can be divided into?

1. High manganese steel

The as-cast structure of high manganese steel is usually composed of austenite, carbide and pearlite, and sometimes contains a small amount of phosphorus eutectic. When the number of carbides is large, they often appear in the form of a network on the grain boundary. Therefore, the high-manganese steel with as-cast structure is very brittle and cannot be used, and solution treatment is required. The commonly used heat treatment method is solution treatment, that is, heating the steel to 1050 ~ 1100 ° C, heat preservation to eliminate the as-cast structure, obtaining a single-phase austenite structure, and then water quenching to keep this structure at room temperature. The strength, plasticity and toughness of the steel after heat treatment are greatly improved.

The grades of high manganese steel and its scope of application:

ZGMn13-1 (C 1.10%～1.50%) for low impact parts

ZGMn13-2 (C1.00%～1.40%) for common parts

ZGMn13-3 (C0.90%～1.30%) for complex parts

ZGMn13-4 (C0.90%~1.20%) for high impact parts

(The manganese content of the above four grades of steel is 11.0% to 14.0%)

2. Medium and low alloy wear-resistant steel

This type of steel has high hardness (Brinell hardness can reach HB500) and is weldable. This type of steel is usually made into steel plates or sections by rolling, and then welded into components. Low alloy steel for use in conditions where wear is the primary failure mode. Mainly divided into low-alloy welding wear-resistant steel, low-alloy wear-resistant steel for construction machinery parts and low-alloy wear-resistant steel for agricultural machinery.

3. Chromium molybdenum silicon manganese steel

Silicon-manganese alloy is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. Silicon-manganese alloy is a composite deoxidizer commonly used in steelmaking, and it is also a reducing agent for low-carbon ferromanganese and electro-silicon thermal production of metal manganese in production. Silicon-manganese alloys can be smelted by continuous operation in large, medium and small submerged arc furnaces.

Scope of application:

Chromium-molybdenum-silicon-manganese alloys are mainly used as intermediate materials for deoxidizers and alloying agents in iron and steel production, and are also the main raw materials for medium and low carbon ferromanganese production.

4. Special wear-resistant steel

Steel grades used under specific working conditions, such as impact wear, corrosion wear, high temperature erosion wear, etc.

There are many types of wear-resistant steel. With the continuous improvement of science and technology, various wear-resistant steels have also been continuously improved and developed. The production method of wear-resistant steel parts used in general machinery is not very different from other workpieces, but the requirements for heat treatment technology and surface treatment technology are somewhat different, but they are all to achieve wear resistance. Require. And the requirements for metallurgical purity are also relatively high, preventing harmful substances and gases from polluting the air when wear-resistant steel is used.

Post Casting Process

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine;

4. Provide after-sales service.

5. The quality can be traced back.

Application

Wear-resistant steel castings are widely used in mining machinery, construction machinery, agricultural machinery, various building materials, electrical machinery, railway transportation, coal mining and transportation, and military industries.