What is the quality of the castings? What are the operating procedures?

Casting, which is a kind of object, is obtained by a certain method. So how does it come from? In addition, what aspects of knowledge do we need to know about castings? These problems have been bothering you all, so we can solve them as soon as possible, so as to eliminate the doubts in our hearts.

What is the quality of the castings? What are the operating procedures?

First of all, how did the castings come from? Simply put, the melted liquid metal is injected into the pre-prepared mold by pouring, injection and inhalation, and then cooled to obtain a certain shape, size and performance.

Generally speaking, the quality of castings can be divided into three grades: qualified products, repaired products and waste products.

Qualified products: That is, the internal and external quality of castings meet the relevant technical conditions and standards.

Repair products: The internal and external quality of castings does not fully meet the relevant technical conditions and standard requirements, but can meet the standard requirements after repairing.

Scrap: The internal and external quality of castings do not meet the relevant technical conditions and standards, so they can be divided into internal waste and external waste.

The operating procedures are as follows:

(1) Before starting work, the equipment should be carefully checked to see if there are potential safety hazards or some unsafe factors. If there are any, it should be dealt with in time.

(2) Tools and so on should also be checked, whether they can be used normally, and if there are any problems, they should be dealt with in time.

(3) When working, we should control the temperature well. If the temperature is higher than 400 C, then we can't hoist at this time, so as to avoid the chain or wire rope breaking.