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Smelting ingredients of support

A smelting and batching technology, applied in the field of smelting and batching of stents, can solve the problems of poor graphite shape, easy fracture of stents, low tensile strength, etc., and achieve the effects of small brittleness, good graphite shape and high tensile strength.

Active Publication Date: 2013-01-02
江西德辰科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The invention provides a smelting ingredient for a bracket, which mainly solves the problems of the existing smelting ingredients casting molded bracket such as easy breakage, low tensile strength, high brittleness, low hardness, and poor graphite shape, and reduces the cost at the same time

Method used

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specific Embodiment 1 10

[0020] Specific embodiments of the present invention one to ten, by mass percentage (%) are specifically as follows:

[0021]

[0022] The rest is iron.

[0023] Below in conjunction with the selection of raw materials in the specific preparation process, smelting and final molding process, the above-mentioned embodiment is described in detail:

Embodiment 1

[0025] 1] Raw material selection: take 700kg of pig iron, 2135kg of scrap steel, 2165kg of recycled material, the total weight is 5000kg, and then add 40kg of silicon carbide, 70kg of recarburizer, 25kg of ferrosilicon, 25kg of ferromanganese, 8kg of iron sulfide, and 33kg of ferrochrome;

[0026] Among them, the carbon content in pig iron is 4.13%, the silicon content is 1.18%, the manganese content is 0.22%, the sulfur content is 0.05%, the phosphorus content is 0.01%, and the rest is iron; the scrap steel carbon content is 0.53%, The silicon content is 0.24%, the manganese content is 0.51%, the sulfur content is 0.023%, the phosphorus content is 0.021%, and the rest is iron; the carbon content of the returned charge is 3.43%, the silicon content is 2.49%, and the manganese content is 0.65% sulfur content, 0.091% sulfur content, 0.023% phosphorus content, 0.03% antimony content, and the rest is iron;

[0027] 2] After mixing the above raw materials evenly, smelting is carrie...

Embodiment 9

[0034] 1] Selection of raw materials: take 600kg of pig iron, 2150kg of scrap steel, 2250kg of recycled materials, the total weight is 5000kg, and then add 45kg of silicon carbide, 75kg of recarburizer, 21kg of ferrosilicon, 22kg of ferromanganese, 8.3kg of iron sulfide, and 35kg of ferrochrome;

[0035] Among them, the carbon content in pig iron is 4.23%, the silicon content is 1.18%, the manganese content is 0.25%, the sulfur content is 0.05%, the phosphorus content is 0.015%, and the rest is iron; the scrap steel carbon content is 0.55%, The silicon content is 0.26%, the manganese content is 0.51%, the sulfur content is 0.025%, the phosphorus content is 0.023%, and the rest is iron; the carbon content of the returned charge is 3.41%, the silicon content is 2.45%, and the manganese content is content is 0.65%, sulfur content is 0.081%, phosphorus content is 0.036%, antimony content is 0.03%, and the rest is iron;

[0036] 2] After mixing the above raw materials evenly, smelt...

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Abstract

The invention provides smelting ingredients of a support, which is mainly used for solving the problem that a support cast by the traditional smelting ingredients of the support comprises the following compositions in percentage by mass: C 3.1-3.6, silicon 1.95-2.4, manganese 0.6-0.9, sulfur 0-0.12, phosphorus 0-0.1, chromium 0.4-0.5, stibium 0.010-0.055, copper 0-0.2 and the balance of ferrum. The finished support casted by the smelting ingredients of the support, provided by the invention, is not easy to crack, high in tensile strength, relatively small in brittleness, high in rigidity, good in graphite pattern, and synchronously relatively low in cost.

Description

technical field [0001] The invention relates to a smelting ingredient for a bracket, which is mainly used for casting a bracket. Background technique [0002] Cast stents can be divided into cobalt-chromium alloy stents, pure titanium stents, precious metal stents, titanium alloy stents, gold-plated stents, etc. according to different materials. Some stents have certain problems in their mechanical properties due to the limitation of their smelting ingredients, such as easy fracture, low tensile strength, high brittleness, and low hardness. Contents of the invention [0003] The invention provides a smelting ingredient for a bracket, which mainly solves the problems of the existing smelting ingredients casting molded bracket such as easy breakage, low tensile strength, high brittleness, low hardness, and poor graphite shape, and reduces the cost at the same time . [0004] Concrete technical solution of the present invention is as follows: [0005] The smelting ingredie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10C22C33/08
Inventor 陆寅鹏
Owner 江西德辰科技有限公司
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