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Production process for packfong strips

A production process, a technology of zinc white copper, applied in the field of production technology of 440mm wide zinc white copper strip, can solve the problems of low yield, large instantaneous current, affecting production safety, etc., and achieve higher coil weight per millimeter and higher yield. , the effect of improving the yield

Inactive Publication Date: 2011-05-25
ANHUI XINKE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the current 330mm wide zinc-nickel-nickel production process, the efficiency of zinc-nickel-nickel strip produced per unit time is not high, and its yield is relatively low
This will not only affect the work efficiency, but also increase the production cost of zinc white copper, which is not conducive to the income of the enterprise
At present, the production of 440mm wide zinc-nickel-nickel strip is faced with the following problems: First, due to the increase in strip width, the flow rate, circulation conditions and outlet water temperature in the mold must be effectively controlled during the casting process; second, the melting rate of the melting furnace As the requirements increase, the voltage must be increased in the production of billets. Due to the phenomenon of zinc spraying in the production of zinc white copper, the instantaneous current is too large, which affects production safety; the third is that the rolling tension must be accurately controlled, otherwise the dimensional quality of the strip will be affected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The production process of the zinc-nickel-nickel strip includes casting process → milling process → rough rolling process → trimming process → annealing process → degreasing and cleaning process → pre-finishing rolling process → annealing process → finishing rolling process → annealing process → Degreasing and cleaning process→bending and straightening process→shearing process→packing process;

[0038] Specifically:

[0039] (1) Casting process:

[0040] The material of the crystallizer is IG-43 graphite mold. During the mold assembly process, the opening size of the graphite mold ramming material and the opening of the front and rear cover plates of the crystallizer are increased to be suitable for the width of the 440mm zinc-nickel-nickel casting slab; the water pressure of the mold is increased. The adjustment range is increased to 1kg, and the outlet water temperature is controlled to 40°C; the billet temperature is controlled to 340°C; the furnace temperature is c...

Embodiment 2

[0066]The production process of the zinc-nickel-nickel strip includes casting process → milling process → rough rolling process → trimming process → annealing process → degreasing and cleaning process → pre-finishing rolling process → annealing process → finishing rolling process → annealing process → Degreasing and cleaning process→bending and straightening process→shearing process→packing process;

[0067] Specifically:

[0068] (1) Casting process:

[0069] The mold material is IG-43 graphite mold. During the mold assembly process, the opening size of the graphite mold ramming material and the opening of the front and rear cover plates of the crystallizer are increased to be suitable for the width of the 440mm zinc-nickel-nickel casting billet; the cooling water pressure is adjusted. Increase the adjustment range of the water inlet pressure of the crystallizer to 4kg, control the outlet water temperature to 30°C; control the billet temperature to 470°C; control the tempera...

Embodiment 3

[0095] The production process of the zinc-nickel-nickel strip includes casting process → milling process → rough rolling process → trimming process → annealing process → degreasing and cleaning process → pre-finishing rolling process → annealing process → finishing rolling process → annealing process → Degreasing and cleaning process→bending and straightening process→shearing process→packing process;

[0096] Specifically:

[0097] (1) Casting process:

[0098] The mold material is IG-43 graphite mold. During the mold assembly process, the opening size of the graphite mold ramming material and the opening of the front and rear cover plates of the crystallizer are increased to be suitable for the width of the 440mm zinc-nickel-nickel casting billet; the cooling water pressure is adjusted. Increase the adjustment range of the water inlet pressure of the crystallizer to 3kg, control the outlet water temperature to 35°C; control the billet temperature to 400°C; control the temper...

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Abstract

The invention discloses a production process for packfong strips, which comprises the following process steps of: casting, milling, rough rolling, edge cutting, annealing, degreasing and cleaning, pre-finish rolling, annealing, finish rolling, annealing, degreasing and cleaning, stretch bending and straightening, cutting and packaging. The structure of a crystallizer, the temperature in a melting furnace, cooling temperature and the like are adjusted and controlled in the casting process, and the tension in the rolling process is controlled, so that the packfong strips with broad widths of 440 millimeters are produced. According to the test of produced packfong strips, the roll weight of unit millimeter is improved, and the yield of cupronickel is improved simultaneously. By measuring, the weight of unit millimeter of the packfong strips with the broad widths of 440 millimeters reaches 13 kilograms, and compared with the weight per unit millimeter of the strips with 330 millimeters, the weight per unit millimeter of the strips with 440 millimeters is improved by 2 to 3 kilograms; and the yield is improved by about 9 percent.

Description

technical field [0001] The invention belongs to the field of zinc-nickel-nickel production, and in particular relates to a production process of a 440mm-wide zinc-nickel-nickel strip. Background technique [0002] Due to the current 330mm-wide zinc-nickel-nickel production process, the efficiency of zinc-nickel-nickel strip produced per unit time is not high, and its yield is relatively low. This will not only affect the work efficiency, but also increase the production cost of zinc white copper, which is not conducive to the income generation of enterprises. At present, the production of 440mm wide zinc-nickel-nickel strip is faced with the following problems: First, due to the increase in strip width, the flow rate, circulation conditions and outlet water temperature in the crystallizer during the casting process must be effectively controlled; second, the melting rate of the melting furnace As the requirements increase, the voltage must be increased in the production of ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 杨春泰孙晓飞李震宇
Owner ANHUI XINKE NEW MATERIALS
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