Forging and forming method of integral hinge beam

A hinged beam and integral technology, applied in the field of forging and forming of large forgings, to achieve the effects of improving performance, compacting core defects, and increasing service life

Inactive Publication Date: 2012-06-27
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an integral hinge beam forging forming method in a six-sided top press for ultra-high pressure synthesis, so as to solve the problem of central compaction in the forging process of the hinge beam

Method used

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  • Forging and forming method of integral hinge beam
  • Forging and forming method of integral hinge beam
  • Forging and forming method of integral hinge beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) The material used for forging is 35CrMo alloy structural steel. According to the heating specification, the steel ingot is heated to the initial forging temperature of 1200°C and kept for 18 hours to make the internal temperature uniform. The weight of the steel ingot used is 15 tons; the final forging temperature during forging is 950°C.

[0038] (2) Carry out the process of conventional steel ingot press pliers, chamfering and removing the tail of the ingot, the main part of the finished steel ingot is as follows figure 1 As shown (the figure omits the clamp handle), the height-to-diameter ratio range of the steel ingot is 2.0:1; the billet is heated to 1200 ° C and kept for 18 hours;

[0039] (3) Upsetting the billet to such as figure 2 After the cylinder with the height-to-diameter ratio shown is 1, use an anvil to upset the billet as image 3 The circular cake shape with four symmetrical slopes 4 is shown; the billet is heated to 1200°C and kept for 18 hours;...

Embodiment 2

[0045] (1) The material used for forging is 40CrMnMo alloy structural steel. According to the heating specification, the steel ingot is heated to the initial forging temperature of 1150°C and kept for 20 hours to make the internal temperature uniform. The weight of the steel ingot used is 10 tons; the final forging temperature during forging is 930°C.

[0046] (2) Carry out the process of conventional steel ingot press pliers, chamfering and removing the tail of the ingot, the main part of the finished steel ingot is as follows figure 1 As shown (the pincers are omitted in this figure), the height-to-diameter ratio range of the steel ingot is 1.2:1; the billet is heated to 1150 ° C and kept for 20 hours;

[0047] (3) Upsetting the billet to such as figure 2 After the cylinder with the height-to-diameter ratio shown is 1, use an anvil to upset the billet as image 3 The circular cake shape with four symmetrical slopes 4 is shown; the billet is heated to 1150°C and kept for 20...

Embodiment 3

[0053] (1) The material used for forging is 20CrNi alloy structural steel. According to the heating specification, the steel ingot is heated to the initial forging temperature of 1250°C and kept for 15 hours to make the internal temperature uniform. The weight of the steel ingot used is 20 tons; the final forging temperature is 980°C during forging.

[0054] (2) Carry out the process of conventional steel ingot press pliers, chamfering and removing the tail of the ingot, the main part of the finished steel ingot is as follows figure 1 As shown (the pincers are omitted in this figure), the height-to-diameter ratio range of the steel ingot is 3:1; the billet is heated to 1250°C and kept for 15 hours;

[0055] (3) Upsetting the billet to such as figure 2 After the cylinder with the height-to-diameter ratio shown is 1, use an anvil to upset the billet as image 3 The circular cake shape with four symmetrical slopes 4 is shown; the billet is heated to 1250°C and kept for 15 hours...

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Abstract

The invention belongs to the field of the forging and forming of the large forging and particularly relates to a forging and forming method of an integral hinge beam in a cubic press used for ultra-high pressure synthesis. A steel ingot is heated to the initial forging temperature according to the heating specification, wherein, reheating according to the heating specification during each work procedure is needed, and the initial forging temperature is not lower than 900 DEG C; after the steel ingot is upset to have the height-diameter ratio of 1, the billet is upset by using a swage into a round disc with an inclined surface at the bottom; after the round-disc shaped billet is drawn out into the cross-shaped billet, tong handles are cut off, a central hole is punched, and the billet is mechanically processed. Due to the adoption of the forging and forming method of the integral hinge beam, the problem on the central compaction of the hinge beam in the forging process is solved, the performance of the product is improved, the service life of the product is prolonged, the process of forging for producing is simplified, the utilization rate of the steel ingot is improved, the production efficiency is enhanced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of forging and forming of large forgings, and in particular relates to an integral hinge beam forging and forming method in a six-sided top press for ultra-high pressure synthesis. Background technique [0002] There are three main types of synthetic equipment used in the field of synthetic diamond synthesis: annual ring type double-sided pressing machine, concave mode double-sided pressing machine and six-sided pressing machine. Europe, America, Japan and South Korea mainly use annual ring double-sided presses, and Russia and the Commonwealth of Independent States mainly use concave double-sided presses. The feature of the double-sided top press is that it can produce high-quality diamonds, and the production technology is relatively mature, but the mold manufacturing cost is high and the production technology is complicated. The six-sided top press is equipment with independent intellectual property rights in China...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00
Inventor 宋鸿武阚盈张士宏程明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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