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Forging mold for near-net-formed titanium strip plate blank and free forging machining method

A near-net shape and processing method technology, applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems of low comprehensive yield of titanium strips, changes in structure and morphology, and high prices of titanium strips , to achieve the effect of increasing the yield, changing the shape of the structure, and shortening the production time

Pending Publication Date: 2020-12-15
新疆湘润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The titanium strip produced by this process, because the free forging process fully breaks and compacts the as-cast structure, fundamentally changes the structure and morphology of the material, and the rolled titanium strips of various specifications are of excellent quality and can meet various requirements. Market demand, its only disadvantage is that it needs to go through the free forging process, resulting in a low comprehensive yield of titanium strips and high prices of titanium strips

Method used

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  • Forging mold for near-net-formed titanium strip plate blank and free forging machining method
  • Forging mold for near-net-formed titanium strip plate blank and free forging machining method
  • Forging mold for near-net-formed titanium strip plate blank and free forging machining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A free forging processing method for a near-net-shaped titanium strip slab, specifically implemented according to the following steps:

[0074] Step (1) Ingot preparation: The titanium and titanium alloy ingots smelted in a vacuum consumable electric arc furnace for the second time are peeled along the circumferential direction on a heavy-duty lathe. Then remove the defects on the head and bottom of the ingot (especially the coral-like defects at the position of the riser of the ingot). Next, fillet the head and tail of the ingot.

[0075] In step (1), the titanium and titanium alloy ingots used are secondary smelted by vacuum consumable arc method, the grade is TA1, the diameter is Φ1020mm, and the weight is 8995kg.

[0076] In step (1), the ingot head and tail fillet radius R=15mm.

[0077] Step (2) Ingot heating: firstly from room temperature to 800°C, heating time 150 minutes; then heat preservation at 800°C, heat preservation time 180 minutes; then heat up to 100...

Embodiment 2

[0084] The titanium and titanium alloy ingots used in the step (1) are secondary smelted by the vacuum consumable arc method, the grade is TA1, the diameter is Φ1020mm, and the weight is 8960kg. The remaining forging methods and process parameters are the same as in Example 1, and the size of the obtained finished product is: 220 (thickness) × 1280 (width) × 6940 (length) mm.

Embodiment 3

[0086] The titanium and titanium alloy ingots used in the step (1) are secondary smelted by the vacuum consumable arc method, the grade is TA1, the diameter is Φ1020mm, and the weight is 8990kg. The other forging methods and process parameters are the same as in Example 1, and the size of the obtained finished product is: 220 (thickness) × 1280 (width) × 6970 (length) mm.

[0087] Embodiment 1-3 effect verification:

[0088] After carrying out effect verification to three titanium belt slabs that embodiment 1-3 obtains, the data are as follows:

[0089]

[0090] It can be seen from the verification data that the finished product rate of the three ingots after forging has increased by 10.42% compared with 88% before the implementation, reaching 98.42%. Based on an annual output of 20,000 tons of titanium strip products of this specification, the current market price is 85,000 yuan / t, and the residual material is 30,000 yuan / t, then: 20000×10.42%×(8.5-3.0)=114.62 million yua...

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Abstract

The invention discloses a forging mold for a near-net-formed titanium strip plate blank, comprising a bottom plate. A transition baffle plate and a vertical baffle plate are sequentially arranged at one end of the bottom plate from bottom to top; a first side wall surface of the transition baffle plate and a second side wall surface of the vertical baffle plate are located on the same side; the first side wall surface, the second side wall surface and the upper surface are all contact surfaces of the mold and the blank; the first side wall surface and the second side wall surface are both arcsurfaces; the upper surface of the first bottom plate is a rectangular plane; the first side wall surface is in smooth connection with the upper surface through transition of the second side wall surface; and a plurality of lifting holes are formed in the side wall surface of the bottom plate. The invention further discloses a free forging machining method for the near-net-formed titanium strip plate blank formed by applying the mold; and the method greatly improves the yield on the premise that it is guaranteed that the machining process is simple and the production efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a forging die for a near-net-shaped titanium strip slab, and also relates to a free forging processing method for a near-net-shape titanium strip slab. Background technique [0002] Titanium and titanium alloys are widely used in the fields of ships and ocean engineering because of their high specific strength, low density, non-magnetic properties, and excellent corrosion resistance. Titanium and titanium alloy strips are widely used in various industries such as chemical industry, shipbuilding industry, aerospace, and high-end building exterior decoration due to their small specific gravity, good corrosion resistance, high temperature resistance, and good stability. And the consumption is increasing year by year. However, due to factors such as expensive raw materials, difficult processing, long processing routes, and low yields of titanium and titanium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J1/06B21J5/00B21J5/02C22F1/18
CPCB21J1/06B21J5/002B21J5/02B21J13/02C22F1/183
Inventor 乔恩利张晓勇张起岳旭同晓乐顾忠明王双礼
Owner 新疆湘润新材料科技有限公司
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