Press Releases from ningbo parfect machinery Co ., ltd (2 total)
What is difference between steel casting vs cast iron
Ningbo parfect casting factory is a professional production of various types of cast steel, alloy steel, stainless steel, cast steel, alloy castings export-oriented enterprises. Let us talk about the difference between steel casting vs cast iron as follows:
Although the two are the same as the iron-carbon alloy, but because of carbon, silicon, manganese, phosphorus, sulfur and other chemical elements in different percentages, crystallization has a different microstructure, and mechanical properties…
How to solve the shell expansion defects on stainless steel castings
During production of stainless steel castings, we often encounter the quality problems of the shell expansion defects. Such defects are caused by crystal expansion happened during the volume solidification and eutectic transformation process of the stainless steel.
Below, let PARFECT talking about the solutions to solve such problems,
1. Strict control on pre-processes, such as wax ingredients, shell pressuring, location of the ingot welding, coating hardening and drying the wax tree. New…
