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Machining technology of large holding clamp on electro-hydraulic hammer

A processing technology, electro-hydraulic hammer technology, applied in the direction of metal processing equipment, etc., can solve the problems of poor product quality, poor bite performance of large clamps, easy to break, etc., to achieve the effect of saving raw materials, good bite performance, and not easy to break

Inactive Publication Date: 2016-10-26
ANHUI RUIJIE FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the large tongs on the electro-hydraulic hammer are cut and formed by thick steel plates. The waste of raw materials is serious, easy to break, and the product quality is poor. In addition, the large tongs are easy to block the operator's sight during operation, and the bite performance of the large tongs is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The invention discloses a processing technology of a large clamp on an electro-hydraulic hammer, which is composed of the following steps:

[0014] (1) Select the blank and place the blank on the sawing machine for rough machining;

[0015] (2) Put the billet into a heating furnace for preheating, the preheating temperature is 220°C, and then heat preservation, the heat preservation temperature is 220°C, and the heat preservation time is 1 hour;

[0016] (3) The billet is heated once, with a heating temperature of 1080°C and a heating rate of 80°C / h, and then a heat preservation, with a heat preservation temperature of 1080°C and a heat preservation time of 5 hours, and then upsetting the billet, The forging ratio is 0.4;

[0017] (4) Carry out secondary heating to the blank after upsetting, the secondary heating temperature is 960°C, and then carry out secondary heat preservation, the secondary heat preservation temperature is 960°C, and the secondary heat preservatio...

Embodiment 2

[0022] The invention discloses a processing technology of a large clamp on an electro-hydraulic hammer, which is composed of the following steps:

[0023] (1) Select the blank and place the blank on the sawing machine for rough machining;

[0024] (2) Put the billet into a heating furnace for preheating, the preheating temperature is 230°C, and then heat preservation, the heat preservation temperature is 230°C, and the heat preservation time is 1.2 hours;

[0025] (3) The billet is heated once, with a heating temperature of 1090°C and a heating rate of 83°C / h, and then a heat preservation, with a heat preservation temperature of 1090°C and a heat preservation time of 5.3 hours, and then upsetting the billet, The forging ratio is 0.4;

[0026] (4) Carry out secondary heating to the blank after upsetting, the secondary heating temperature is 970°C, and then carry out secondary heat preservation, the secondary heat preservation temperature is 970°C, and the secondary heat preser...

Embodiment 3

[0031] The invention discloses a processing technology of a large clamp on an electro-hydraulic hammer, which is composed of the following steps:

[0032] (1) Select the blank and place the blank on the sawing machine for rough machining;

[0033] (2) Put the billet into a heating furnace for preheating, the preheating temperature is 240°C, and then heat preservation, the heat preservation temperature is 240°C, and the heat preservation time is 1.3 hours;

[0034] (3) The billet is heated once, with a heating temperature of 1100°C and a heating rate of 85°C / h, and then a heat preservation, with a heat preservation temperature of 1100°C and a heat preservation time of 5.5 hours, and then upsetting the billet, The forging ratio is 0.5;

[0035] (4) Carry out secondary heating to the blank after upsetting, the secondary heating temperature is 990°C, and then carry out secondary heat preservation, the secondary heat preservation temperature is 990°C, and the secondary heat preser...

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Abstract

The invention relates to a machining technology of a large holding clamp on an electro-hydraulic hammer, and belongs to the technical field of machining of large holding clamps on electro-hydraulic hammers. The technology comprises the following steps that (1) a blank is selected, and the blank is placed on a sawing machine to be subjected to rough machining; (2) the blank is placed in a heating furnace to be preheated; (3) the blank is subjected to primary heating, then primary heat preservation is carried out, and then the blank is subjected to upsetting; (4) the blank obtained after upsetting is subjected to secondary heating, then secondary heat preservation is carried out, and then the blank is drawn; (5) the blank obtained after upsetting is subjected to tertiary heating, then tertiary heat preservation is carried out, and then the blank is subjected to bend forging; and (6) the blank is subjected to quartus heating, then quartus heat preservation is carried out, the blank is cooled in the furnace till the temperature ranges from 550 DEG C to 600 DEG C, and then the blank is discharged out of the furnace for air cooling till the room temperature is achieved. The large holding clamp on the electro-hydraulic hammer saves raw materials and is not prone to being broken off, good in product quality and good in holding-on performance.

Description

technical field [0001] The invention belongs to the technical field of processing large clamps on electro-hydraulic hammers, and in particular relates to a processing technology for large clamps on electro-hydraulic hammers. Background technique [0002] The electro-hydraulic hammer is a kind of forging equipment that uses the hydraulic system to lift the hammer head and strike the billet for forming. The large tongs on the electro-hydraulic hammer are often used in forging modules, forming of pie-shaped large-section forgings, and blanking of ring-shaped forgings. At present, the large tongs on the electro-hydraulic hammer are cut and formed by thick steel plates. The waste of raw materials is serious, easy to break, and the product quality is poor. In addition, the large tongs are easy to block the operator's sight during operation, and the bite performance of the large tongs is poor. Contents of the invention [0003] The technical problem to be solved by the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K5/00B21J5/08B21J5/06B21J1/06
CPCB21K5/00B21J1/06B21J5/06B21J5/08
Inventor 吕美莲刘春超冯宝倪吕俊吕诚
Owner ANHUI RUIJIE FORGING
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