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Titanium sheet vacuum hotpressing shape righting technology

A vacuum hot pressing, thin plate technology, used in forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of surface oxidation, pollution, etc., to achieve the effect of large surface area, long service life and shortened processing time

Active Publication Date: 2019-12-31
LUOYANG SUNRUI TI PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vacuum hot-pressing orthopedic process for titanium thin plates, which can achieve high flatness and surface quality of titanium thin plates, low-cost vacuum hot-pressing orthopedics, and solve surface oxidation and pollution problems at the same time

Method used

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  • Titanium sheet vacuum hotpressing shape righting technology
  • Titanium sheet vacuum hotpressing shape righting technology
  • Titanium sheet vacuum hotpressing shape righting technology

Examples

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Effect test

example 1

[0034] Example 1: 1.0mm thickness specification TA1 brand titanium thin plate vacuum hot pressing orthopedic annealing.

[0035] The flatness of the titanium sheet before annealing is 10~25mm. Adopt the method of the present invention to carry out material swing, wherein titanium sheet 5 is divided into two piles of piles, the total thickness of titanium sheet piles is 200mm, and every pile of titanium sheets 5 has a thickness of 100mm; the titanium chips 9 that are cleaned and fully dried are arranged as Around the titanium thin plate stacking material, and fix it with a metal mesh 10; after the material is placed, vacuum the vacuum hot-pressed orthopedic furnace to ≤1×10 -2 Pa, raise the temperature to 350 degrees Celsius for intermediate heat preservation, the heating time is 2 hours; the intermediate heat preservation time is 2.5 hours; after the intermediate heat preservation stage is over, the temperature is raised to 450 degrees Celsius to enter the hot-pressing orthope...

example 2

[0037] Example 2: 1.5mm thickness specification TC4 grade titanium thin plate vacuum hot pressing orthopedic annealing.

[0038] The flatness of the titanium sheet before annealing is 8~20mm. Adopt the method of the present invention to carry out material swing, wherein 5 titanium sheets are divided into two stacks, the total thickness of the titanium sheet stacks is 180mm, and the thickness of each stack of titanium sheets 5 is 90mm; the cleaned and fully dried titanium chips 9 are arranged on the titanium sheets Around the stacking material, and fix it with a metal mesh 10; after the material is placed, the vacuum hot-pressed orthopedic furnace is evacuated to ≤1×10 -2 Pa, raise the temperature to 400 degrees Celsius for intermediate heat preservation, the heating time is 2.5 hours; the intermediate heat preservation time is 2.5 hours; after the intermediate heat preservation stage is over, the temperature is raised to 600 degrees Celsius to enter the hot-pressing orthopedic...

example 3

[0040] Example 3: 2.0mm thickness specification TA2 brand titanium thin plate vacuum hot pressing orthopedic annealing.

[0041] The flatness of the titanium sheet before annealing is 12~30mm. Adopt the method of the present invention to carry out material swing, wherein titanium sheet 5 is divided into two piles of piles, the total thickness of titanium sheet piles 300mm, every pile of titanium sheets 5 thickness 100mm; Around the thin plate stacking material, and fix it with a metal mesh 10; after placing the material, vacuum the vacuum hot-pressing orthopedic furnace to ≤1×10 -2 Pa, raise the temperature to 350 degrees Celsius for intermediate heat preservation, the heating time is 4 hours, and the middle heat preservation time is 4 hours; after the intermediate heat preservation stage is over, the temperature is raised to 550 degrees Celsius to enter the hot-pressing orthopedic stage, the heating time is 4 hours, and the heat-pressing orthopedic stage is held for 6 hours. ...

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Abstract

A titanium sheet vacuum hotpressing shape righting technology includes a placing procedure and a vacuum hotpressing righting procedure for titanium sheets, wherein the placing procedure includes the following steps: placing a material tray on a material tray support inside a hotpressing shape righting furnace, placing a bottom plate on the material tray, fully distributing liner plates on the bottom plate and reserving intervals among the liner plates; step II, stacking the titanium sheets stack by stack vertically on the liner plates, a baffle is arranged between every upper stack of titaniumsheets and lower stack of titanium sheets, and liner plates are placed between every baffle and the titanium sheets above and between every baffle and the titanium sheets below according to the manner of step I, so as to obtain the titanium sheet stack; step III, placing liner plates at the top of the titanium sheet stack according to step I, placing pressure plates on the liner plates, placing pressure blocks on the pressure plates, and reserving intervals among the pressure plates; step IV, placing cleaned and fully dried titanium scraps surrounding the titanium sheet stack, fixing by a metal net and completing the placing procedure. According to the invention, high flatness and surface quality, low cost vacuum hotpressing shape righting of the titanium sheets can be realized, besides,surface oxidation and pollution can be avoided.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal processing, and in particular relates to a titanium thin plate vacuum hot-pressing orthopedic process. Background technique [0002] Titanium has the advantages of light weight, high strength, corrosion resistance, and non-magnetic properties. It is widely used in aerospace, marine, electronics, medical and other fields. Among them, titanium and titanium alloy sheets with a thickness of 0.1~3mm are the most widely used. With the development of technology, customers have higher and higher requirements for the flatness and surface quality of titanium and titanium alloy sheets. In the production process of titanium thin plate, it has to go through multiple processes such as hot rolling, cold rolling, heat treatment, and slitting. Titanium thin plate has different degrees of curvature and needs orthopedic treatment. However, due to the low elastic modulus, high resilience and high strength of titaniu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D1/00B21D37/16
CPCB21D1/00B21D37/16
Inventor 李渤渤陈涛陶会发陈学伟
Owner LUOYANG SUNRUI TI PRECISION CASTING
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