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Titanium plate shape control method

A technology of plate shape control and titanium plate, applied in the field of metallurgy, can solve the problems of buckle head, many waste products, waste products, etc.

Active Publication Date: 2020-11-13
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. During the rough rolling process, there is a serious buckle warping phenomenon, which frequently causes waste products
[0005] 2. After the titanium plate is rolled, there is an obvious buckle phenomenon. In severe cases, the buckle arch height reaches about 80mm, which has a great impact on the further processing of downstream enterprises and produces more waste products.

Method used

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  • Titanium plate shape control method
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  • Titanium plate shape control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this example, the titanium plate Ti3111 is rolled, and the roll number is 99A109001.

[0063] The billet specifications are: thickness 172mm, width 1078mm, length 8040mm; rough rolling outlet thickness 35mm, finished rolling specifications: thickness 5.2mm, width 1084mm, target temperature 690℃.

[0064] The titanium plate blank is heated in a trolley furnace, and the target release temperature is 880 °C.

[0065] 1) Calculation of rough rolling parameters:

[0066] The thickness of the blank is 172mm. According to Table 1, the initial reductions (mm) of the seven passes are determined to be 46, 58, 50, 53, 42, 37, and 25, respectively. The total side pressure is -6mm. According to Table 2, the maximum side pressure (mm) of the 1st, 3rd, 5th, and 7th passes is determined as: 5, 10, 10, and 10, respectively. The rolling parameters of rough rolling are as follows:

[0067]

[0068] Note: Setting pressure refers to calculating pressure, and setting roll gap refers...

Embodiment 2

[0077] In this example, a titanium plate TA3 is rolled, and the roll number is 99A139502.

[0078] The billet specifications are: thickness 201mm, width 1138mm, length 7110mm; rough rolling outlet thickness 35mm, finished rolling specifications: thickness 7.0mm, width 1132mm, target temperature 690℃.

[0079] The titanium plate blank is heated in a trolley furnace, and the target release temperature is 880 °C.

[0080] 1) Calculation of rough rolling parameters:

[0081] The thickness of the blank is 201mm. According to Table 1, the initial reductions (mm) of the seven passes are determined to be 45, 58, 49, 53, 42, 37, and 25, respectively. The total side pressure is 6mm. According to Table 2, the maximum side pressure (mm) of the 1st, 3rd, 5th, and 7th passes is determined as: 20, 20, 20, and 15, respectively. The rolling parameters of rough rolling are as follows:

[0082]

[0083] Note: Setting pressure refers to calculating pressure, and setting roll gap refers to c...

Embodiment 3

[0092] In this example, a titanium plate TA1 is rolled, and the roll number is 99B100101.

[0093] The billet specifications are: thickness 209mm, width 1235mm, length 8001mm; rough rolling outlet thickness 35mm, finished rolling specifications: thickness 8.1mm, width 1220mm, target temperature 690℃.

[0094] The titanium plate blank is heated in a trolley furnace, and the target release temperature is 880 °C.

[0095] 1) Calculation of rough rolling parameters:

[0096] The thickness of the blank is 209mm. According to Table 1, the initial reductions (mm) of the seven passes are determined to be 44, 58, 47, 53, 42, 37, and 25, respectively. The total side pressure is 15mm. According to Table 2, the maximum side pressure (mm) of the 1st, 3rd, 5th and 7th passes is determined as: 25, 30, 20 and 20 respectively. The rolling parameters of rough rolling are as follows:

[0097]

[0098] Note: Setting pressure refers to calculating pressure, and setting roll gap refers to cal...

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Abstract

The invention discloses a titanium plate shape control method. The method comprises the steps of plate blank heating, high-pressure water dephosphorization, rough rolling and finish rolling, wherein rough rolling comprises the steps that a rough rolling outlet thickness is determined, distribution is carried out according to preset initial rolling reduction of each pass, and seven-pass rolling iscarried out on a plate blank in the mode that the maximum side rolling reduction limit of each pass of odd passes is increased. By means of the method, the buckling warping problem existing in the rolling process of a titanium plate and titanium alloy can be solved, and the downward-buckling phenomenon existing after rolling is completed can be avoided.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for controlling the shape of a titanium plate. Background technique [0002] The hot continuous rolling process is a method of producing steel, usually using continuous cast or blooming slabs as raw materials. The slab is first heated in the heating furnace according to the temperature specified by the process, and heated to the target temperature. Then the slab is descaled by high pressure water, and then enters the rough rolling mill, usually the vertical roll of rough rolling controls the width, and the flat roll controls the thickness. After rolling in the roughing mill, the strip reaches the preset target thickness, width and temperature, and then the strip enters the finishing mill for continuous rolling, so that the strip reaches the preset target thickness and temperature. The strip is finally formed into coils by a coiler. [0003] Due to the market demand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B3/00B21B37/28
CPCB21B3/00B21B37/28
Inventor 邱华东陈达陈艳芳
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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