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Casting workshop safety management regulations reference

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Introduction of shell molding process

Casting is a popular manufacturing method used to produce a variety of metal components of the many casting technologies available. Sand casting often preferred due to its low cost, high flexibility and ability to produce parts of various sizes and shapes. A variant of sand casting known as shell... Read More

The casting process of gray iron

The casting process of gray iron includes the three elements known as the “three musts” in the casting industry: good iron, good sand, and good process. The casting process is one of the three major factors, alongside iron quality and sand quality, that determine the quality of castin... Read More

How to solve and prevent the casting defects?

Casting iron fittings often produces various casting defects in the production process. Now Shijiazhuang donghuan malleable iron technology co.,ltd tell you how to prevent such defects has always been a problem that casting manufacturers are concerned about. The production workshop mainly uses th... Read More

Donghuan Factory Relocation Notice

Shijiazhuang Donghuan Malleable Iron Castins Co., Ltd. was changed to Shijiazhuang Donghuan Malleable Iron Technology Co., Ltd. Affected by the government’s land acquisition, the original factory has been demolished by the government for reasonable use. Therefore, the address of our factory... Read More

Casting defect of malleable cast iron and prevention method

Defect one: Can’t pour Features: the casting shape is incomplete, the edges and corners are round, which are commonly seen in thin wall parts. Reasons: 1. Iron liquid oxygen is serious, carbon and silicon content is low, sulfur content is high; 2. Low pouring temperature, slow pouring speed... Read More

How to use claw couplings

Claw couplings are broadly used for air and water in industry and construction. Both halves of the coupling are exactly the same – no distinction between a coupler and an adapter. They have two lugs (claws) each, which engage in the corresponding notches of the opposite half. That is why they can... Read More

According to casting wall thickness and material grade to choose chemical composition

In order to meet the requirement of customer, Shijiazhuang dong huan malleable iron castings co., ltd has been developed new malleable iron fittings. For the chemical composition of raw material we have some summarize. The C, Si, CE and Mg values of the casting should meet the key dimensions of t... Read More

Introduction of casting coating

Casting coating is an auxiliary material coated on the surface of the mold or core, which plays an important role in improving the surface quality of castings. China’s early casting craftsmen, more than 3000 years ago, have prepared and successfully used casting coating, making a significan... Read More

Shijiazhuang Donghuan malleable iron casting coated sand casting process

Today, I will take you to Donghuan Malleable Iron Casting Co., Ltd. Let’s learn about the casting process of coated sand. I. Knowledge and understanding of coated sand 1. Features of coated sand It has suitable strength performance; good fluidity, the prepared sand molds and sand cores have... Read More

Dual control of energy consumption policy

Perhaps you have noticed that the recent “dual control of energy consumption” policy of the Chinese government, which has a certain impact on the production capacity of some manufacturing companies, and the delivery of orders in some industries has to be delayed. In addition, the China Ministry o... Read More

How to install sandblast couplings?

Material: Malleable iron. Equipped with a rubber washer, a steel safety clip and screws. Usage: For abrasive blasting hoses with an inside diameter of 32 mm. Sandblast hose couplings are a quick connect or nozzle-threaded hose coupling designed specifically for sandblast hose applications.  The ... Read More
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