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2021.01.20

2020 it is so difficult, why is Lianxin casting sand increasing by 20% against the trend?

2020 it is so difficult, why is Lianxin casting sand increasing by 20% against the trend?

A year ago, when Lianxin Foundry Sand Group, as a representative of China's outstanding foundry sand enterprises, appeared in Osaka, Japan, together with the export commodity exhibition of Liaoning Province, as a foundry power, it is hard to think that Chinese foundry sand enterprises can one day bring Chinese artificial sand products to Japanese enterprises to sell Chinese sand products to Japanese enterprises.

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lianxin

2020.12.25

Lianxin Group and Shengquan Group reached a technical strategic cooperation

Lianxin Group and Shengquan Group reached a technical strategic cooperation

In October 2020, Liaoning Lianxin Cast Sand Group and Shandong Shengquan Group formally signed a technical strategic cooperation. In the future, the two sides will increase cooperation in the field of product technology research and development, integrate enterprise resources, open and share experimental data, exchange experimental results, and jointly promote the progress of the casting silica sand industry.

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lianxin

2020.12.24

Fine casting sand classification

Fine casting sand classification

Precision casting sand is mainly divided into quartz sand and special sand according to the composition of minerals. Quartz sand is commonly known as silica sand. Let's learn about the difference between silica sand and non-silica sand. The main mineral composition of silica sand is quartz, and the main chemical composition is SiO2.

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lianxin

2020.12.24

Reasons for Poor Permeability of Coated Sand Production Equipment

Reasons for Poor Permeability of Coated Sand Production Equipment

Coated sand production equipment is a new type of coated sand production equipment with excellent high temperature performance and comprehensive casting performance, and the casting process of coated sand production equipment has also achieved great success and solved many problems. However, the production equipment of coated sand sometimes has poor air permeability. So what are the reasons for this phenomenon? The following small series to introduce to you.

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lianxin

2020.12.24

How to ensure the quality of foundry sand

How to ensure the quality of foundry sand

In the process of casting at high temperature, the sand size is easily changed due to the thermal expansion of the sand, which affects the accuracy of the casting size and the appearance and performance of the casting. At the same time, the thermal expansion coefficient of the molding sand is too large, which will cause casting defects such as sand inclusion, scarring, and rat tail. All kinds of factors make foundry enterprises more careful in choosing molding sand, not only to consider the thermal expansion coefficient of molding sand, but also to take into account the cost of molding sand.

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lianxin

2020.12.24

Lianxin Casting Sand Group was once again awarded the "China Casting Coated Sand Production Base"

Lianxin Casting Sand Group was once again awarded the "China Casting Coated Sand Production Base"

On the morning of September 11, leaders and experts of China Foundry Association Wang Dongsheng, Ma Hongru, Rong Lihui and Zhao Zhili reviewed the "China Coated Sand Production Base for Foundry" of Lianxin Foundry Sand Group. At the same time, on the afternoon of September 11, Zhang Boming, Huang Tianyou, Gong Jimin and Ying Zhongtang, four experts from the expert committee of the China Casting Association, visited the molten ceramic sand factory of Lianxin Casting Sand Group.

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