What Is a Steel Abrasive?

Steel Shot (Steel Shot) is commonly known as Cast Steel Grit (Steel Abrasives), angular sand is an upgrade and replacement of cast iron sand and iron sand. , Shot blasting and rust removing abrasives, shot blasting materials, shot blasting abrasives, blasting abrasives, blasting consumables, blasting machine abrasives, shot blasting and rust removing abrasives, shot blasting materials, blasting materials, rust removing abrasives, steel plate pretreatment abrasives Steel pre-treatment abrasives are ideal for shot blasting and shot peening metal abrasives.

Cast steel sand

Steel blast cleaning: shot blasting, shot blasting, die casting cleaning, casting blast cleaning, forging blast cleaning, forging blast cleaning, casting sand cleaning, steel plate cleaning, steel cleaning, steel plate cleaning, H-beam cleaning, steel structure cleaning .

Steel sand rust removal: shot blasting, shot rust removal, casting rust removal, forging rust removal from steel plates, forging removal from scale, steel rust removal, H-shaped steel rust removal, and steel structure rust removal.

Steel grit strengthening: shot peening, shot peening for heat treated parts, shot peening for gears.

Steel shot peening: steel shot peening, steel shot peening, ship board shot peening, steel plate shot peening, steel shot peening.

Steel shot blasting: steel plate shot blasting, steel shot blasting, profile steel shot blasting.

Steel sand blasting: sand blasting treatment.

Steel sand pre-treatment: pre-painting treatment, painting pre-treatment, surface pre-treatment, ship plate pre-treatment, profile steel pre-treatment, steel pre-treatment, steel plate pre-treatment, and steel structure pre-treatment.

New national standard GB / T18838.3 "High Carbon Casting" implemented on September 1, 2008

Specification level: G240 G005;

Microhardness: 390HV-530HV; 470HV-610HV; 570HV-710HV; 700HV

Chemical composition: carbon: 0.8% -1.2%, manganese: 0.35% -1.2%, silicon: 0.4%, sulfur, phosphorus: 0.05%;

Metallographic structure: tempered martensite or tempered qubit;

Density 7.0g / cm3;

Total defects 40%;

Foreign impurities 1%;

Water content 0.2%.

Since the tempered iron sand is annealed, the surface color is evenly blue. The tempered iron sand is often used to impersonate cast steel sand. The service life of the iron sand is only 50-400 times. The iron rust removal effect is severely reduced, which seriously damages the interests of users.

The bainite steel sand, chrome molybdenum steel sand, and manganese steel sand are all the concept propaganda words of the manufacturers, because if you add 1% metal molybdenum, you need to add 10kg metal molybdenum per ton of steel sand, which costs 4,000 yuan. RMB, and domestic iron sands are only sold for about 3,000 yuan / ton.

1. Used as metallurgical deoxidizer and high temperature resistant material.

2, can also do hardware, glass, precious stones, jade and other polishing.

3. As an abrasive, it can be used as abrasive tools, such as grinding wheels, whetstones, grinding heads, and sand tiles.

4. High-purity single crystal, which can be used in the manufacture of semiconductors and silicon carbide fibers.

The raw material of steel grit is scrap steel of high carbon steel or alloy steel.

A process for preparing steel grit directly from scrap steel. It includes the following steps:

(1) Putting scrap steel made of high carbon steel or alloy steel into a quenching device for heating and quenching treatment;

(2) The waste steel material after heating and quenching is put into a crusher to be crushed to obtain a semi-finished steel sand product;

(3) The steel grit semi-finished product is screened and classified to obtain a finished steel grit. The steel grit production method of the present invention reduces the scrap steel smelting and pelletizing processes that must be cast into steel shots first in the traditional steel grit production process, which greatly saves production costs.

There is also a steel grit production method, which is characterized by including the following steps:

(1) Putting scrap steel made of high carbon steel or alloy steel into a quenching device for heating and quenching treatment;

(2) The waste steel material after heating and quenching is put into a crusher to be crushed to obtain a semi-finished steel sand product;

(3) The steel grit semi-finished product is screened and classified to obtain a finished steel grit.

Different types of casting steel products will be used in different processes. They are applicable to industrial scope. The casting steel sand is made of high-quality steel scraps. It is first melted, and then the molten steel is formed by high-pressure water spraying. Small spherical. The formed pellets are heated again to purify the homogenizer, and then quenched. The quenched pellets are dried in a furnace and reheated and tempered to achieve the appropriate hardness. The tempered alloy steel pellets are sorted into 11 grades in accordance with SAE standards through mechanical screens for shot blasting equipment . Products with different particle sizes and hardnesses are used in different processes, such as surface strengthening.

Cast steel grit is widely used for descaling and rust removal before coating of steel workpieces. In this case, centrifugal shot blasting equipment is often used. The ball shape and smaller hardness will not cause much wear to the equipment. Alloy steel shots are also widely used in the foundry industry. After the workpiece is taken out of the mold, use a steel shot to remove the sand on the surface of the workpiece. When alloy steel shots are used with the right equipment, they are definitely your best abrasive for surface cleaning because of their durability.

Cast steel grit suitable for industrial scope: aviation industry, automotive industry, sandblasting / painter, consumer goods manufacturing, container manufacturing / repairing, casting, granite / stone cutting and shipbuilding and ship repairing, middlemen, oil and gas pipelines, factory maintenance and metal processing.

Application scope of casting steel sand: surface pre-treatment before spraying; sand removal of castings; descaling of pipelines, etc. ^[1]