Corrosion-resistant and weather-resistant gear ring for gear box coupling and preparation method of corrosion-resistant and weather-resistant gear ring

A coupling, corrosion-resistant technology, used in belts/chains/gears, manufacturing tools, mechanical equipment, etc., can solve the problems of reduced service life of the ring gear, poor corrosion resistance and weather resistance, and achieve increased service life and enhanced Strength, the effect of improving fatigue strength

Inactive Publication Date: 2021-09-28
江阴市万众精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the ring gear for the existing gear box coupling has poor corrosion resistance and weather resistance during use, resulting in a reduction in the service life of the ring gear

Method used

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  • Corrosion-resistant and weather-resistant gear ring for gear box coupling and preparation method of corrosion-resistant and weather-resistant gear ring
  • Corrosion-resistant and weather-resistant gear ring for gear box coupling and preparation method of corrosion-resistant and weather-resistant gear ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a corrosion-resistant and weather-resistant ring gear for a gearbox coupling, which comprises the following raw materials in weight percentage: 0.1% carbon, 1.5% silicon, 0.5% nickel, 0.005% phosphorus, 0.5% titanium, 12% chromium, 0.1% vanadium, 0.3% lanthanum, 0.1% tungsten, 0.1% molybdenum, 0.2% rhenium, the balance is iron and unavoidable impurities.

[0027] In a preferred embodiment, the content of said unavoidable impurities is less than 0.005%.

[0028] The present invention also provides a method for preparing a corrosion-resistant and weather-resistant ring gear for a gearbox coupling, and the specific preparation steps are as follows:

[0029] Step 1: Weigh each raw material according to the above weight percentage, import the weighed scrap iron, scrap steel and scrap alloy steel into the intermediate frequency furnace, then pass a low current to the intermediate frequency furnace, and raise the temperature to 1150°C at a heating rate o...

Embodiment 2

[0041] The difference from Example 1 is that a corrosion-resistant and weather-resistant ring gear for a gearbox coupling includes the following raw materials in weight percentages: 0.18% carbon, 2.3% silicon, 0.8% nickel, 0.015% phosphorus, 0.1% titanium, Chromium 15%, vanadium 0.4%, lanthanum 0.5%, tungsten 0.2%, molybdenum 0.2%, rhenium 0.5%, and the balance is iron and unavoidable impurities.

Embodiment 3

[0043] The difference from Examples 1-2 is that a corrosion-resistant and weather-resistant ring gear for a gearbox coupling includes the following raw materials in weight percentages: 0.25% carbon, 3% silicon, 1% nickel, 0.025% phosphorus, titanium 1.5%, chromium 18%, vanadium 0.7%, lanthanum 0.8%, tungsten 0.3%, molybdenum 0.3%, rhenium 0.8%, and the balance is iron and unavoidable impurities.

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Abstract

The invention discloses a corrosion-resistant and weather-resistant gear ring for a gearbox coupling, and particularly relates to the technical field of coupling gear rings. The corrosion-resistant and weather-resistant gear ring comprises the following raw materials: carbon, silicon, nickel, phosphorus, titanium, chromium, vanadium, lanthanum, tungsten, molybdenum, rhenium and the balance of iron and inevitable impurities. The titanium, the chromium, the vanadium, the lanthanum, the tungsten, the molybdenum and the rhenium are added, the added titanium can form stable, dispersed, high-melting-point and high-hardness carbide with carbon in the gear ring material, the intergranular corrosion tendency in the gear ring material is eliminated, and therefore the corrosion resistance of the gear ring is improved. Meanwhile, the content of the chromium in the gear ring material is 12-18%, the strength and corrosion resistance of the gear ring can be better due to the high-content chromium element, and by adding vanadium, tungsten and molybdenum, deterioration can be purified, grains can be refined, and the wear resistance and strength of the composite plate can be improved. The produced coupling gear ring has high corrosion resistance and weather resistance, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of shaft coupling ring gears, more specifically, the invention relates to a corrosion-resistant and weather-resistant ring gear for gear box couplings and a preparation method thereof. Background technique [0002] Coupling refers to a device that connects two shafts or shafts and rotating parts, and rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used as a safety device to prevent the connected parts from being subjected to excessive loads and play the role of overload protection. A ring gear is required during the use of the coupling. The performance of the ring gear will directly affect the service life of the coupling. [0003] However, the existing ring gears for gear box couplings have poor corrosion resistance and weather resistance during use, resulting in a reduction in the service life of the ring gears. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/34C22C38/50C22C38/46C22C38/44C22C33/04C21D1/26C21D8/00C21D9/32C23C4/129C23F17/00B23P15/14F16H55/17
CPCC22C38/34C22C38/50C22C38/46C22C38/005C22C38/44C22C38/002C22C33/04C21D1/26C21D8/005C21D9/32C23C4/129C23F17/00B23P15/14F16H55/17
Inventor 姚伟建邰敏薛近荣王迪耿明辉丁爱丽
Owner 江阴市万众精密机械有限公司
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