Continuous casting, continuous solling production method and apparatus for stainless steel seamless composite pipe

A technology of continuous casting and rolling, production methods, applied in the direction of metal rolling, etc., can solve the problems of intermittent production process, high price, low production efficiency, etc., achieve the effect of shortening process, reducing production cost, and reducing equipment investment

Inactive Publication Date: 2007-08-29
李铁铎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the domestic and foreign market demand is increasing day by day, but the rare metals nickel, chromium, and titanium required for the production of stainless steel are less and less, and their prices are becoming more and more expensive, which greatly restricts the production and application of stainless steel. To solve this contradiction, people began to research and explore stainless steel composite materials
At present, stainless steel composite plates, strips, and pipes appearing in some application fields are produced under this market background, but so far, there are still few stainless steel composite materials in the market, especially stainless steel seamle

Method used

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  • Continuous casting, continuous solling production method and apparatus for stainless steel seamless composite pipe
  • Continuous casting, continuous solling production method and apparatus for stainless steel seamless composite pipe
  • Continuous casting, continuous solling production method and apparatus for stainless steel seamless composite pipe

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Embodiment Construction

[0030] specific implementation plan

[0031] 1. (See attached picture) Taking the production of stainless steel inner composite pipe as an example, when starting to cast billets, first send the dummy rod 44 into the upper crystallizer 25, and at the same time put the fixed ring on the dummy rod into the lower mold 33. After sealing, the molten stainless steel 21 is poured into the upper crystallizer 25 through the upper ladle 22 and the upper casting tank 23. The stainless steel water gradually crystallizes into stainless steel tube blanks under the strong cooling of the inner and outer crystallizers. The fixed rod and the tube blank are pulled out of the upper crystallizer 25 under the traction of the upper traction roller 26, and enter the lower crystallizer 33 after secondary cooling. At this time, the low carbon molten steel 29 is injected through the lower ladle 30 and the lower casting trough 31. The lower crystallizer 33, in the crystallizer, the outer side of the low-...

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Abstract

The invention relates to stainless steel seamless composite tube continuous casting tandem rolling producing method and device. Its features are that it uses two parallel vertical type hollow bloom continuous casting machines to directly cast out stainless steel composite hollow bloom, cut the high temperature tube blank into given size, and put into sloping bottom die casting furnace to adjust temperature; then the tube blank is taken out to sent into roller trio planet skew rolling mill, tension reducing mill, sizing mill to form finished tube; the finished tube is processed cooling, strengthening, scaling, packing. The invention can shorten production flow, reduce device investment, save energy sources, and increase production efficiency and steel tube rolling quality.

Description

technical field [0001] The invention relates to a stainless steel seamless composite pipe continuous casting and rolling production method and equipment, which belongs to a near-network continuous casting and rolling technology in the production process of different metal seamless composite pipes in the field of metallurgy. The present invention is characterized in that continuous casting composite hollow tube blanks are used to realize on-line heat preservation and soaking, and then the tube blanks are directly sent to a three-roll planetary skew rolling mill, tension reducing machine, and sizing machine to continuously produce finished seamless composite tubes. . By adopting the method, the process of piercing the solid billet and heating the billet twice can be omitted, and the near-net shape continuous casting and rolling for the production of the seamless composite steel pipe can be finally realized. technical background [0002] Stainless steel, a special metal materi...

Claims

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Application Information

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IPC IPC(8): B21B1/46B22D11/14B22D11/12B21B19/06
Inventor 李铁铎
Owner 李铁铎
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