Hard zinc plating production method
A production method and hard-state technology, applied in hot-dip coating process, coating, furnace type, etc., can solve the problems of high cost, long US steel annealing furnace, high energy consumption of strip steel processing, etc., and achieve reasonable design Effect
Pending Publication Date: 2022-04-19
首钢凯西钢铁有限公司
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Problems solved by technology
[0002] The existing hard galvanizing production is all produced by the United States steel method (all radiation heating). , the present invention proposes a production method of hard galvanizing
Method used
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[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0019] see figure 1 , the present invention provides a kind of technical scheme: a kind of production method of hard galvanizing, concrete steps are as follows:
[0020] Step 1: Prepare the raw plate for hard rolling. The original plate for hard rolling is required to be flat and straight, and the strip steel has no shape defects and sickle bends on the elastic side;
[0021] Step 2: Use the galvanizing line to process the rolled hard raw plate, and the cleaning section of the galvanizing line requires the concentration of lye to be 2.5±0.5%;
[0022] Step 3: The temperature setting of the open flame furnace in the Sendzimir method, as shown in the following table:
[0023] Strip specification
Zone 1°C
Zone 2°C
Zone ...
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Abstract
The invention provides a hard-state zinc plating production method which comprises the following steps: preparing a rolled hard original plate, checking the rolled hard original plate, if the rolled hard original plate is poor in plate shape, carrying out a substrate withdrawal and straightening process treatment, and treating the rolled hard original plate by using a zinc plating unit, the alkali liquor concentration required by the cleaning section of a galvanizing unit is 2.5 + / -0.5%, the open fire furnace temperature in the Sendzimir method is set, the strip steel annealing furnace temperature in the Sendzimir method is set, the hard-state galvanizing production method is reasonable in design, by controlling the temperature setting of the annealing furnace, a full-hard-state galvanizing product with good quality can be produced, the yield strength of the product is larger than or equal to 590 mpa, the surface hardness is larger than or equal to 90 HRB, and the production cost is low. And the definition of a full-hard galvanized sheet is met.
Description
technical field [0001] The invention belongs to the technical field of galvanizing production, in particular to a production method of hard galvanizing. Background technique [0002] The existing hard galvanizing production is all produced by the American Steel United method (all radiation heating). The American Steel United method has a long annealing furnace and high energy consumption for strip processing. , the invention proposes a production method of hard galvanizing. Contents of the invention [0003] In order to solve the problems existing in the prior art, the present invention provides a production method of hard galvanizing, the production method of hard galvanizing is reasonable in design, and by controlling the temperature setting of the annealing furnace, it can produce all-hard galvanizing with good quality Galvanized products, product yield strength ≥ 590mpa, surface hardness ≥ 90HRB, meet the definition of full hard galvanized sheet. [0004] In order to...
Claims
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IPC IPC(8): C23C2/06C23C2/40C23C2/02C21D9/52C21D1/26C21D11/00C23F17/00
CPCC23C2/06C23C2/40C23C2/02C21D9/52C21D1/26C21D11/00C23F17/00
Inventor 鄢铎万方潜吴进匡伟伟
Owner 首钢凯西钢铁有限公司