Alloy steel nut connecting piece and preparation method thereof

A connecting piece and alloy steel technology, which is applied in the field of mechanical parts processing, can solve the problems of not pointing out the complete supporting technical scheme of mechanical casting and processing technology, not pointing out the scheme of mutual combination, and difficult to achieve the ideal effect, etc., and achieve the improvement of precision , improve the service life, not easy to deform

Inactive Publication Date: 2016-10-26
MAANSHAN WANXIN CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molten steel treated with the refining and slagging agent contains very low sulfur, oxygen and inclusions, but the refining and slagging agent in the document has few types of ingredients, and the preparation method is simple, so it is difficult to achieve the desired effect, and the method is single, and It does not ...

Method used

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Embodiment Construction

[0016] An alloy steel nut connector is characterized in that it comprises the following components in weight percent:

[0017] Magnesium 0.55-0.65, Manganese 1.25-1.3, Chromium 2.1-2.2, Silicon 0.7-0.75, Carbon 1.22-1.35, Copper 0.4-0.45, Titanium 0.02-0.06, Tungsten 0.15-0.20, Molybdenum 0.6-0.9, Niobium 0.4-0.6, Cobalt 0.03-0.05, scandium 0.02-0.05, polonium 0.002-0.006, refining slagging agent 20-25, the balance is iron and unavoidable impurities;

[0018] The refining slagging agent is composed of the following raw materials in parts by weight: bauxite 20-45, quartz sand 19-44, barium 5-10, active lime 10-11, fluorogypsum 9-10, albite 5-10, Aluminum shot 2-5; the preparation method of the refining slagging agent is: mix bauxite, quartz sand, barium, active lime, fluorogypsum, albite, and aluminum shot with an appropriate amount of water, and then make it into a spherical shape, Then put it into the shaft furnace and use coke as fuel to pre-melt. The pre-melt temperature i...

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PUM

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Abstract

The invention discloses an alloy steel nut connecting piece. The alloy steel nut connecting piece is characterized by being prepared from, by weight percent, 0.55%-0.65% of magnesium, 1.25%-1.3% of manganese, 2.1%-2.2% of chromium, 0.7%-0.75% of silicon, 1.22%-1.35% of carbon, 0.4%-0.45% of copper, 0.02%-0.06% of titanium, 0.15%-0.20% of tungsten, 0.6%-0.9% of molybdenum, 0.4%-0.6% of niobium, 0.03%-0.05% of cobalt, 0.02%-0.05% of scandium, 0.002%-0.006% of polonium and 20%-25% of a refining slag regulating agent. According to the alloy steel nut connecting piece, casting quality is improved, and mechanical performance, corrosion resistance and oxidation resistance are good.

Description

technical field [0001] The invention relates to the field of machining of mechanical parts, in particular to an alloy steel nut connector and a preparation method thereof. Background technique [0002] A nut is a nut, a part that is screwed together with a bolt or a screw for fastening. A component that must be used in all manufacturing machinery is divided into carbon steel, stainless steel, and non-ferrous metals (such as copper) according to different materials. several types. For example: self-locking nuts, anti-loosening nuts, lock nuts, four-claw nuts, nuts, nuts, screw-in nuts, safety nuts, thin rod screw connection nuts, self-locking hexagon cap nuts, nuts for special anchor screws, hexagonal crown nuts Thin nuts, eye nuts. The main operation method of the embedded knurled copper nut is injection molding. After heating, it is embedded into the plastic part or directly molded. If mold injection is used, the melting point of PA / NYLOY / PET is above 200°C, and the embed...

Claims

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Application Information

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IPC IPC(8): C22C38/18C22C38/12C22C38/10C22C38/02C22C38/16C22C38/14C22C38/04C21C7/00C21D1/18B22C9/06C23C22/62
CPCB22C9/068C21C7/0087C21D1/18C22C38/002C22C38/02C22C38/04C22C38/10C22C38/12C22C38/14C22C38/16C22C38/18C23C22/62
Inventor 张立安魏明军
Owner MAANSHAN WANXIN CASTING
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