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Special working roller for tin-plating finishing machine and manufacturing method thereof

A manufacturing method and finishing machine technology, applied in manufacturing tools, metal processing equipment, grinding/polishing equipment, etc., can solve the problem that cryogenic equipment is not suitable for industrialized large-scale production, etc. Texture, potency-enhancing effects

Active Publication Date: 2020-01-07
BAOSTEEL ROLL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this cryogenic equipment is not suitable for industrialized large-scale production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0030] The chemical composition and weight percentage of the special work roll for the tinning finish machine in this embodiment are as follows: carbon 0.80%; silicon 0.60%; manganese 0.35%; phosphorus ≤ 0.020%; sulfur ≤ 0.008%; chromium 4.50%; nickel 0.40%; Molybdenum 0.40%; Vanadium 0.15%; the rest is iron and unavoidable impurities.

[0031] The manufacturing method of the special working roll of the tinning skin pass machine of the present embodiment is as follows:

[0032] ①Smelting electroslag ingot.

[0033] Alkaline electric furnace is used to make steel, and after refining and vacuum degassing, it is poured into a round die-cast steel ingot. After the die-cast steel ingot is annealed at 680°C, surface shot blasting is used to remove oxidation and inclusions on the surface of the steel ingot. The electroslag process adopts atmosphere protection electroslag Furnace electroslag, with low impedance binary slag system for electroslag, one electrode is melted to form an el...

Embodiment 2～ Embodiment 3）

[0052] The difference between each embodiment and embodiment 1 lies in the chemical composition, see Table 1 for details.

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Abstract

The invention discloses a special working roller for a tin-plating finishing machine and a manufacturing method thereof. The working roller is prepared from the following chemical components in percentage by weight: 0.70-0.90% of carbon, 0.40-0.80% of silicon, 0.20-0.50% of manganese, less than or equal to 0.020% of phosphor, less than or equal to 0.008% of sulfur, 4.00-4.90% of chromium, 0.20-0.60% of nickel, 0.10-0.50% of molybdenum, 0.05-0.30% of vanadium and the balance iron and inevitable impurities. The manufacturing method for the working roller comprises the following steps of smeltingelectroslag ingot blank, forging roller blank, preparing for thermal treatment, performing final thermal treatment, and finish-machining. Problems such as component segregation, carbide segregation and the like are effectively controlled by optimizing the components and optimizing the manufacturing links, so that abnormal grains caused by follow-up chromium-plating or roughening due to componentsegregation or carbide segregation are avoided, and therefore, working condition requirements of the tin-plating finishing machine are met.

Description

technical field [0001] The invention belongs to the technical field of work rolls for skin-pass mills, and in particular relates to a special work roll for tin-plated skin-pass machines and a manufacturing method thereof. Background technique [0002] Tinplate refers to a cold-rolled thin steel plate coated with a layer of extremely thin metal tin on both sides, generally with a thickness of <0.18mm, and is often used as a material for food and beverage packaging cans. Tinplate has a very high surface quality and precision for its surface. The skin pass process is an important link in the entire tinplate production process, and the quality of the work rolls of the skin pass machine that directly contacts the plate surface directly affects the subsequent tinplate plating and the surface quality of the finished product. [0003] Due to the high content of carbon (above 0.70%) and alloys, the work rolls of skin pass mills are prone to problems such as segregation of material...

Claims

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Application Information

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IPC IPC(8): C22C38/46C22C38/44C22C38/04C22C38/02C22C33/04C21D8/00C21D1/28C21D1/32C21D1/18C21D1/10C21D6/04B24B5/37
CPCB24B5/37C21D1/10C21D1/18C21D1/28C21D1/32C21D6/04C21D8/005C22C33/04C22C38/002C22C38/02C22C38/04C22C38/44C22C38/46Y02P10/25
Inventor 陈伟韩剑谢晶李北玉胡现龙罗昌王永侯兴慧
Owner BAOSTEEL ROLL SCI & TECH
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