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Preparation method of large titanium-cathode roller

A technology of cathode roll and heat affected zone, applied in the direction of electrodes, etc., can solve the problems of thinning, and achieve the effect of good quality, large deformation, and difficult roll size

Inactive Publication Date: 2011-08-24
南京宝泰特种材料股份有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The overall cathode roller is rolled and deformed on the rolling mill to further refine the metal grains of the whole cylinder

Method used

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Embodiment Construction

[0015] The embodiment of technical solution of the present invention:

[0016] 1. Titanium thick plate reel, after welding, heat the weld seam and the heat-affected zone that needs to be heated. The heating temperature is controlled between 750 and 780°C, and the heating time is 2 hours. The intermediate frequency induction device is used to heat the weld seam and the heat-affected zone of the roller. Heating the heat-affected zone of the weld seam, and then extruding, hammering or rolling the weld seam with heavy-duty rollers on a rolling mill to deform the weld seam layer. The deformation of the weld seam layer material is 10%. Repeat heating and It is better to press three times; then perform recrystallization annealing, the heating temperature is 780-800 ℃, the holding time is 1 hour, and then cool in the furnace.

[0017] Meet the technical conditions for the acceptance of titanium cathode rollers:

[0018] ①Cylinder material grain size grade: from the outer surface to t...

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Abstract

The invention relates to a preparation method of a large titanium-cathode roller. The method comprises the following steps of: rolling by adopting a thick titanium plate; after welding, heating a welding line and a welding line heat-affected zone needing heating at 750-980 DEG C for 0.2-2 hours by adopting a medium-frequency induction device; hammering or pressing and rolling the welding line on a rolling mill by a heavy roller to deform a welding line layer with a material deformation degree of 10-20 percent; heating and pressing the welding line heat-affected zone twice to four times; recrystalizing and annealing at 750-850 DEG C for 1-2 hours; and cooling a furnace. The heating and recrystallization of a cathode roller before rolling at a controlled lower heating temperature has great deformation resistance to cause defects and deformation and causes heavy-layer crystal grains only on a surface layer, and the heavy-layer crystal grains can be thinned.

Description

1. Technical field [0001] The invention relates to a method for preparing a titanium cathode roller. 2. Background technology [0002] Electrolytic copper foil is an important material for the manufacture of copper clad laminates (CCL), the conductive material of printed circuit boards (PCBs), and one of the basic materials for the electronics industry. According to reports, the consumption of copper foil in my country will increase from 30,000 tons to 60,000 tons, and there is a large production gap. In recent years, affected by various factors such as market cost and environment, the production of electrolytic copper foil in the United States, Japan, Taiwan, Hong Kong, South Korea and other countries and regions has gradually shifted to China. Therefore, the rapid development of my country's electrolytic copper foil industry will be promoted, and the demand for large titanium cathode rollers, a key equipment for the production of electrolytic copper foil, will also increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D17/10C22F1/18
Inventor 杭逸夫邓宁嘉肖仁道吴昌辉赵瑞晋
Owner 南京宝泰特种材料股份有限公司
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