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A control method for spraying zinc on the surface of extruded aluminum profiles

A control method and aluminum profile technology, applied in fusion spraying, metal material coating process, coating, etc., can solve the problems of difficult control of spraying speed and unsatisfactory thickness of zinc spraying layer, etc., and achieve strong adaptability and saving Labor cost and production time, the effect of high control accuracy

Active Publication Date: 2019-09-20
YANGZHOU RISE AL COMPOSITE METAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a control method for spraying zinc on the surface of extruded aluminum profiles, to solve the technical problem in the prior art that the spraying speed on the surface of extruded aluminum profiles is difficult to control, resulting in the thickness of the sprayed zinc layer not meeting the requirements

Method used

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  • A control method for spraying zinc on the surface of extruded aluminum profiles
  • A control method for spraying zinc on the surface of extruded aluminum profiles
  • A control method for spraying zinc on the surface of extruded aluminum profiles

Examples

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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, it is a schematic diagram of the zinc spraying process. The zinc spraying equipment includes a contact tip 1, an air nozzle 2 and a metal wire 3, and an arc 4 is generated during the zinc spraying process. Yangzhou Resile Composite Metal Material Co., Ltd. is an enterprise that produces micro-channel aluminum flat tubes (an extruded profile whose surface requires zinc spraying). Its zinc spraying equipment is a Japanese KUKEN zinc spraying machine. Kuken zinc spraying machine is one of the most advanced zinc spraying equipment in the industry at present. Its control system adopts the current mainstream control method described in the background technology of this application. The company found in actual production that the content of zinc sprayed on the surface of the product The fluctuation is very large and cannot meet the requirements, and then the control system of the zinc spraying equipment is transformed by using the control method des...

example 1

[0036] Example 1: at a certain moment t 1 , the product speed is 60m / min, according to the formula, the zinc spraying current is 47A, and the actual zinc spraying current Y at this time 1 50A, beyond the range of 47±1, and the time reaches 1s, the control system will automatically reduce the zinc spray current to 47A.

example 2

[0037] Example 2: at a certain moment t 2 , the product speed is 70m / min, and the zinc spraying current is calculated according to the formula to be 50A. If the actual zinc spraying current is 45A at this time, exceeding the range of 50±1, and the time reaches 1s, the control system will automatically reduce the zinc spraying current to 50A.

[0038] Before the transformation of the zinc spraying system, the zinc spraying content on the surface of the product was actually detected, and the probability of exceeding the required range was 30%. After the transformation of the zinc spraying system, the actual detection of the sprayed zinc content on the surface of the product shows that the probability of exceeding the required range is less than 5%. Moreover, the automatic adjustment of the zinc spraying system saves a lot of labor costs and production time.

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Abstract

The invention discloses a control method for surface zinc spraying for an extruded aluminum profile. The control method comprises the following steps that firstly, according to zinc spraying equipmentparameters and the zinc spraying amount requirement, the corresponding relational expression between the zinc spraying current Y and the aluminum product extrusion speed X is determined, and the deviation value sigma and the delay time T are set; secondly, the aluminum product extrusion speed is collected in the zinc spraying process, a control system of zinc spraying equipment calculates the zinc spraying current Y2 corresponding to the aluminum product extrusion speed X according to the relational expression in the step one, and meanwhile the control system automatically collects the current actual zinc spraying current Y1 and judges whether the formula: Y2-sigma<=Y1>=Y2+sigma is met or not. If the formula: Y2-sigma<=Y1>=Y2+sigma is not met and the time does not reach the delay time T,the zinc spraying equipment automatically adjusts the actual zinc spraying current, the actual zinc spraying current and the aluminum product extrusion speed basically meet the set relational expression, accurate control is conducted, and it is ensured that a zinc spraying layer is uniform in thickness and free of defects.

Description

technical field [0001] The invention relates to a control method for spraying zinc on the surface of extruded aluminum profiles. Background technique [0002] Extruded aluminum profiles are one of the main categories of the aluminum processing industry. Its products are used in many industries such as construction, electrical appliances, automobiles, and rail transit. Some of the extruded aluminum profiles have high requirements for corrosion resistance. In order to improve the corrosion resistance of the product, the general treatment method in the industry is to use zinc spray equipment to spray a layer of zinc on the surface of the product during the extrusion process. Practice shows that if the amount of zinc sprayed on the surface of the product is too small, the effect of enhancing the corrosion resistance of the product cannot be achieved; if the amount of zinc sprayed on the surface of the product is too much, the welding performance of the product will be reduced, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/08C23C4/123
Inventor 王文定石宇凡孙德干
Owner YANGZHOU RISE AL COMPOSITE METAL MATERIALS CO LTD