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A kind of reducer gearbox end cover and preparation method thereof

A gear box and reducer technology, applied in belt/chain/gear, mechanical equipment, transmission parts, etc., can solve the problems of poor heat resistance, poor corrosion resistance, poor shock absorption, etc., to achieve good heat resistance, improve The effect of improving heat resistance and overall performance

Active Publication Date: 2017-12-12
NINGBO SHENGJING TRANSMISSION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end cover of the reducer gearbox in the current technology is generally forged with various high-quality alloy steels. Although the hardness is high, it has poor shock absorption, poor heat resistance, and poor corrosion resistance.

Method used

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  • A kind of reducer gearbox end cover and preparation method thereof
  • A kind of reducer gearbox end cover and preparation method thereof
  • A kind of reducer gearbox end cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Pre-melting treatment: prepare the charge according to the composition and mass percentage of the end cover of the reducer gear box described in Example 1 in Table 1, preheat the charge to 150°C for later use, and then preheat the crucible at 500°C to dark It is red for later use; among them, the zinc in the charge is electrolytic zinc, the mixed rare earths are Y-rich mixed rare earths and Ce-rich mixed rare earths, the master alloy is an aluminum-manganese alloy with a manganese content of 12%-20%, and a boron content of 8%-12% Aluminum-boron alloys, magnesium-calcium alloys with a calcium content of 15%-20%, and aluminum-strontium alloys with a strontium content of 16%-25%;

[0032] Melting & Refining: In SF 6 +CO 2 Under the protection of mixed gas (SF 6 The volume fraction accounts for 0.2% of the mixed gas), the magnesium ingot in the charge is first added to the crucible, and it is completely melted at 680°C, and then the aluminum ingot, zinc, mixed rare earth ...

Embodiment 2

[0036] Pre-melting treatment: Prepare the charge according to the composition and mass percentage of the end cover of the reducer gear box described in Example 2 in Table 1, preheat the charge to 170°C for later use, and then preheat the crucible to dark at 520°C It is red for later use; among them, the zinc in the charge is electrolytic zinc, the mixed rare earths are Y-rich mixed rare earths and Ce-rich mixed rare earths, the master alloy is an aluminum-manganese alloy with a manganese content of 12%-20%, and a boron content of 8%-12% Aluminum-boron alloys, magnesium-calcium alloys with a calcium content of 15%-20%, and aluminum-strontium alloys with a strontium content of 16%-25%;

[0037] Melting & Refining: In SF 6 +CO 2 Under the protection of mixed gas (SF 6 The volume fraction accounts for 0.35% of the mixed gas), the magnesium ingot in the charge is first added to the crucible, and it is completely melted at 685°C, and then the aluminum ingot, zinc, mixed rare earth...

Embodiment 3

[0041] Pre-melting treatment: according to the composition and mass percentage of the end cover of the reducer gear box described in Example 3 in Table 1, prepare the charge, preheat the charge to 160°C for later use, and then preheat the crucible at 550°C to dark It is red for later use; among them, the zinc in the charge is electrolytic zinc, the mixed rare earths are Y-rich mixed rare earths and Ce-rich mixed rare earths, the master alloy is an aluminum-manganese alloy with a manganese content of 12%-20%, and a boron content of 8%-12% Aluminum-boron alloys, magnesium-calcium alloys with a calcium content of 15%-20%, and aluminum-strontium alloys with a strontium content of 16%-25%;

[0042] Melting & Refining: In SF 6 +CO 2 Under the protection of mixed gas (SF 6 The volume fraction accounts for 0.3% of the mixed gas), the magnesium ingot in the charge is first added to the crucible, and it is completely melted at 680°C, and then the aluminum ingot, zinc, mixed rare earth...

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Abstract

The invention relates to a reducer gearbox end cover, in particular to a reducer gearbox end cover and a preparing method thereof and belongs to the technical field of alloy materials. The reducer gearbox end cover comprises, by mass percent, 8.80%-10.00% of Al, 0.42%-0.85% of Zn, 0.15%-0.45% of Mn, 0.05%-0.10% of B, 0.20%-1.20% of Ca, 0.20%-0.60% of Sr, 0.30%-1.50% of Y, 0.20%-0.80% of Ce, smaller than or equal to 0.04% of Si, smaller than or equal to 0.003% of Fe, smaller than or equal to 0.0015% of Ni, smaller than or equal to 0.002% of Cu and the balance Mg. The invention particularly discloses the preparing method of the reducer gearbox end cover. Due to the reasonable compatibility of all the components and reasonable setting of technological parameters and due to the adoption of the method of composite solution treatment, the performance of the reducer gearbox end cover is further improved, the reducer gearbox end cover can have good comprehensive performance both under the room temperature and the high temperature, the requirement for the performance of the reducer gearbox end cover is met, and the service life of a reducer gearbox is prolonged.

Description

technical field [0001] The invention relates to a reducer gear box, in particular to a reducer gear box end cover and a preparation method thereof, belonging to the technical field of alloy materials. Background technique [0002] The speed reducer plays the role of matching speed and transmitting torque between the prime mover and the working machine or the actuator. The speed reducer is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque. According to the number of transmission stages, it can be divided into single-stage and multi-stage reducers; according to the shape of the gear wheel, it can be divided into cylindrical gear reducers, bevel gear reducers and conical-cylindrical gear pulley reducers; according to the layout of the transmission, it can be divided into It is divided into expansion type, shunt type and coaxial shaft type reducer. The reducer is an independent component composed of gear transmission, worm tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/00C22C1/03C22C1/06C22C23/02C22F1/06F16H57/031F16H57/032
CPCB22D17/00C22C1/03C22C1/06C22C23/02C22F1/06F16H57/031F16H57/032
Inventor 金华君李鸿达魏军强杨立盛吉辉
Owner NINGBO SHENGJING TRANSMISSION SCI & TECH CO LTD
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