Do you know how steel castings are cleaned

Anyone who knows steel casting manufacturers knows that steel casting cleaning is a link after the pouring process and an indispensable step in the whole process, although it is not the most technically demanding and difficult link.

Precautions and requirements for cleaning steel castings:

Before the steel casting is completely solidified, it is not allowed to move the casting, and the strong cold above 600 is not allowed to spray water. Castings are generally cleaned after 2-3 hours of natural cooling.

Workflow

Clean the waste sand on the surface and cavity of the casting, gas cutting, casting gates, risers and burrs, clean the casting residue again, weld the casting, grind the casting, and accept the quality of the casting

Operating methods and quality standards

1. Preparation

Steel casting production enterprises should always pay attention to the safety of workers in the production process, wear labor protection equipment as required, and confirm the safety of the working environment; Prepare the machinery, equipment, and tools used and inspect them carefully to ensure that they are in good condition and can be operated and used properly and safely.

2. Normal processing

(1) Use an air pick or water sand cleaner to clean up the waste sand of the casting.

(2) After the casting waste sand is cleaned up, operate the cutting gun according to the "Gas Cutting Safety Technical Operation Regulations" to cut the casting gate, riser, flash and burr.

(3) Casting cutting, in line with the requirements. Operate the welding machine in accordance with the "Safety Technical Operation Regulations for Wolders", repair the defective parts of the casting, and ensure the integrity of the casting.

(4) After welding repair, the composite process requirements. Use a grinder to polish the cutting and welding parts of the casting to ensure that the cutting and welding parts are smooth.

(5) After grinding, acceptance is carried out and heat treatment is prepared

Since the steel casting cleaning process of the steel casting manufacturer is carried out with the pouring link, the steel casting must be completely solidified and cooled for 2-3 hours before cleaning, which reduces the risk of high temperature injury of employees and the risk of steel casting defects caused by incomplete solidification of the casting.