Deoxidizer

A technology of deoxidizer and weight percentage, applied in the field of deoxidizer, can solve the problems of poor compactness of castings, achieve the effects of improved mechanical strength and anti-corrosion performance, good degassing effect, and less water leakage

Inactive Publication Date: 2010-10-27
绍兴市上虞新达精密铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a deoxidizer, which solves the problem of poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1

[0012] Deoxidizer (weight percentage): silicon 46%, barium 14%, calcium 8%, lanthanum 7.5%, aluminum 7%, carbon 0.10%, and the rest is iron. Mix the alloy fine powder with the above proportion in proportion, the particle size of the powder is less than 0.05mm, and then send it into the round ball mechanism after fully stirring, and then add 3% limestone and 10% bentonite accounting for the total alloy fine powder , 2% cellulose, 1% water glass as a binding agent, rolling into a spherical shape.

[0013] Add the above-mentioned deoxidizer to the stainless steel water, after deoxidizing and removing slag, inject the quick joint mold, shell and finish the finished joint product, observe that there are no pores and obvious defects on the surface, after testing, the water leakage ratio is less than 2%, tensile strength The strength is 580Mpa, the yield strength is 260Mpa, and the elongation rate is 50%.

Example Embodiment

[0014] Example 2

[0015] Deoxidizer (weight percentage): silicon 48%, barium 16%, calcium 6%, lanthanum 6%, aluminum 6%, carbon 0.12%, the rest is iron, the preparation method is as in Example 1.

[0016] Add the above-mentioned deoxidizer to the stainless steel water, after deoxidizing and removing slag, inject the quick joint mold, shell and finish the finished joint product, observe the surface without pores and obvious defects, after testing, the water leakage ratio is less than 2%. The tensile strength is 560Mpa, the yield strength is 275Mpa, and the elongation rate is 52%.

Example Embodiment

[0017] Example 3

[0018] Deoxidizer (weight percentage): silicon 47%, barium 15%, calcium 7%, cerium 6%, aluminum 6.5%, carbon 0.11%, the rest is iron, the preparation method is as in Example 1.

[0019] Add the above-mentioned deoxidizer to the stainless steel water, after deoxidizing and removing slag, inject the quick joint mold, shell and finish the finished joint product, observe that there are no pores and obvious defects on the surface, after testing, the water leakage ratio is less than 2%, tensile strength The strength is 573Mpa, the yield strength is 272Mpa, and the elongation rate is 57%.

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PUM

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Abstract

The invention discloses a deoxidizer which comprises the following components in percentage by weight: 46-48% of silicon, 14-16% of barium, 6-8% of calcium, 6-7.5% of rare earth metal, 6-7% of aluminum and balance of iron. The deoxidizer of the invention has good effect on sulphur removal, deoxidation and degasification and can be used for deoxidizing for stainless steel. The molten casting has good tissue compactness and can not leak water easily, and the mechanical strength and the corrosion resistance are greatly improved.

Description

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Claims

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Application Information

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Owner 绍兴市上虞新达精密铸造有限公司
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