High-performance nodular cast iron spheroidizing agent and manufacturing equipment thereof

A technology of nodular cast iron and nodularizing agent, which is applied in foundry equipment, casting molding equipment, and equipment for transporting casting molds, etc., can solve the problems of low production efficiency, high cost of nodularizing agent, and low degree of automation of processing equipment.

Active Publication Date: 2021-11-30
镇江东丰特殊合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The cost of existing nodulizers is high, the degree of automation of processing equipment is low, and manual loading and unloading is mostly used, resulting in low production efficiency

Method used

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  • High-performance nodular cast iron spheroidizing agent and manufacturing equipment thereof
  • High-performance nodular cast iron spheroidizing agent and manufacturing equipment thereof
  • High-performance nodular cast iron spheroidizing agent and manufacturing equipment thereof

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Effect test

Embodiment 1

[0038] The main component of "spheroidizing agent" is nodularizing elements, such as Mg, Ce, Ca, etc. Spheroidal graphite in ductile cast iron is formed by spheroidizing molten cast iron, making it much stronger than gray cast iron and tougher than malleable cast iron, while maintaining a series of advantages of gray cast iron. However, the "spheroidizer" used in the casting of ductile iron can increase the tendency of the weld to produce "white mouth" and hardened structure, and induce cracks in the weld and heat-affected zone (especially the fusion zone). Therefore, the weldability of ductile iron is worse than that of gray cast iron.

[0039] A high-performance nodularizer for ductile iron, including Si: 35-45 parts, Mg: 7-9 parts, Re: 3-4 parts, Ca: 1-2 parts, Fe: 30-50 parts, Ce: 1- 5 servings.

[0040] Such as Figure 1-7 As shown, a high-performance ductile iron nodularizing agent production equipment includes a smelting section 1, a casting section 2, a crushing sec...

Embodiment 2

[0047] The main component of "spheroidizing agent" is nodularizing elements, such as Mg, Ce, Ca, etc. Spheroidal graphite in ductile cast iron is formed by spheroidizing molten cast iron, making it much stronger than gray cast iron and tougher than malleable cast iron, while maintaining a series of advantages of gray cast iron. However, the "spheroidizer" used in the casting of ductile iron can increase the tendency of the weld to produce "white mouth" and hardened structure, and induce cracks in the weld and heat-affected zone (especially the fusion zone). Therefore, the weldability of ductile iron is worse than that of gray cast iron.

[0048] Such as Figure 1-7 As shown, a high-performance nodularizer for ductile iron, including Si: 35-45 parts, Mg: 7-9 parts, Re: 3-4 parts, Ca: 1-2 parts, Fe: 30-50 parts, Ce : 1-5 servings.

[0049] A high-performance ductile iron nodularizing agent production equipment, including a smelting section 1, a casting section 2, a crushing s...

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Abstract

The invention relates to the technical field of spheroidizing agent processing, in particular to a high-performance nodular cast iron spheroidizing agent. The high-performance nodular cast iron spheroidizing agent comprises 35-45 parts of Si, 7-9 parts of Mg, 3-4 parts of Re, 1-2 parts of Ca, 30-50 parts of Fe and 1-5 parts of Ce. The invention further provides the high-performance nodular cast iron spheroidizing agent and manufacturing equipment thereof. The manufacturing equipment of the high-performance nodular cast iron spheroidizing agent comprises a smelting part, a casting part, a crushing part, a screening part and a mixing part; the mixing part is arranged on one side of the smelting part; the casting part is arranged at the bottom of the smelting part; the casting part is in sliding connection with the bottom of the smelting part; the crushing part is arranged at the bottom of the casting part; and the screening part is arranged at the bottom of the crushing part. The problems that the spheroidizing agent in the prior art is high in cost, the processing equipment is low in automation degree, manual loading and unloading are mostly adopted, and the production efficiency is low are solved. The invention further discloses a using method of the high-performance nodular cast iron spheroidizing agent manufacturing equipment.

Description

technical field [0001] The invention relates to the technical field of nodulizer processing, in particular to a high-performance nodular cast iron nodulizer and production equipment thereof. Background technique [0002] The Chinese invention patent with the publication number CN102021467A discloses a nodular cast iron nodularizer, wherein: its composition and weight percentage are: Mg 36-45%, Re 6-10%, Ca 2-15%, Si 23-40 %, Ga 2-8%, and the rest is iron. The spheroidizing agent adopts the fusion method and is broken into powder particles, the particle size of which is less than 2mm. For the cored pipe, there are a plurality of supporting ribs between the outer wall of the inner steel pipe and the inner wall of the outer steel pipe, and the nodularizer also includes Ba. The invention can slow down the intensity of Mg vapor explosion, increase the Mg absorption rate, prolong the reaction time of the nodularizer, improve the matrix structure of pearlite, and improve the round...

Claims

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Application Information

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IPC IPC(8): C21C1/10B22F9/04B22C9/06B22D29/04B22D33/02C22C38/02B07B1/28B07B1/46
CPCC21C1/105B22F9/04B22C9/06B22D29/04B22D33/02C22C38/002C22C38/005C22C38/02B07B1/28B07B1/46B07B1/4663
Inventor 凌云
Owner 镇江东丰特殊合金有限公司
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