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Liaoning Dongdaihe New District Jialian Technology Co., Ltd. is a high-tech enterprise that was established to meet the demand of new product development of steel metallurgy industry to new type furnace materials. Since establishment, the company has been specialized in  research and development of high-end metallurgy furnace materials and ecological environmental protection products and providing solutions for energy conservation and emission reduction and environmental protection engineering. Through unremitting efforts made by the staffs for the purpose of "technological innovation and high-end development", the company has created  dual-layer solid pure calcium cored wire, calcium wire calcium pellet cored wire, aluminum wire calcium pellet cored wire, solid pure calcium cored wire with interlayer for powder and compound cored wire and other patents for invention, which has made a huge contribution to development of China's cored wire industry. Also, in line with the business philosophy of "quality first and customer supreme", the company has won a good reputation in the industry. 

Cause Analysis and Countermeasures against Spatter of Pure Calcium Cored Wire:

Ⅰ. Cause of Spatter

Melting point of calcium is 843℃, boiling point is 1450℃;

Solubility is low;

Static pressure of molten steel is lower than saturation pressure after evaporation of calcium (shallow depth of insertion);

Steam bubble is big (amount of monomer is large);

Ⅱ. Consequence of Large Spatter

Hidden danger;

The rate of yield is lower and the cost is higher;

Nitrogen increases;

Ⅲ. Regular Solutions and Problems

Increase thickness of iron sheet and depth of insertion (difficulties for processing and wire feeding);

Reduce unit weight of calcium properly (long time for wire feeding, high cost and low efficiency);

Granulate calcium metal, form many small bubbles after evaporation for more absorption (uneven unit weight and large fluctuation).

The advantages of Dual-Layer Solid Pure Calcium Cored Wire:

Spatter reduced greatly;

The rate of calcium yield increased significant;

Tensile strength is higher;

Increased nitrogen is less;

Flue gas emission is less.

The advantages of Composite Calcium Wire:

Spatter is extremely low;

The rate of yield is higher;

Calcium content per unit length  is higher;

The wire feeding speed is steady and controllable scope is wide;

Increased nitrogen is less.

The advantages of Solid Pure Calcium Cored Wire with Interlayer for Powder:

Spatter reduced greatly;

The rate of yield is higher;

The speed and length  of wire feeding are precisely controlled;

The content of calcium per unit length is high. The wire feeding time is short. The efficiency is high;

Increased nitrogen is less. 

Products of the company have been used in more than 10 large-scale iron and steel companies at home such as Hebei Iron & Steel Co., Ltd, Baosteel Group, Xinjiang Ba Yi Iron SteelCo.,Ltd.  Fangda Group,  Shougang Group, Toughua Iron & Steel Co., Ltd, and Panzhihua Iron & Steel Co., Ltd,. The quality and after sales were well received and trusted by the enterprises. 

Jialian Technology represents excellent quality, perfect service and high technologies. Innovating technology and excellent quality is eternal pursuit of the company.

• [Editor:張德眾]