Technology improving scratches on surface of copper material used for LED lamp supports

A technology for LED light brackets and scratches, which is applied to workpiece surface treatment equipment, manufacturing tools, metal processing equipment, etc., can solve problems such as poor surface quality, achieve good control and reduce surface brush marks

Inactive Publication Date: 2016-02-24
ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of the prior art that the copper material used for LED lamp brackets with a thickness greater than 1.0 mm has many surface scratches and poor surface quality, and provides an improved copper material for LED lamp brackets with a thickness greater than 1.0 mm. The technology of scraping and scratching on the surface of the material greatly reduces the occurrence of scratches during the production process and improves the surface quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A process for improving scratches on the surface of copper materials used for LED lamp brackets in this embodiment specifically includes the following steps:

[0036] Step 1. Rough rolling of rough copper

[0037] Step 2. Primary annealing of rough copper

[0038] After rough rolling in step 1, the rough copper material is annealed in a bell-type furnace. The specific process is: put the rough copper material into the bell-type furnace, heat up to 350°C after 3.5 hours, and then keep it for 5.5 hours. After the heat preservation is over, the furnace is cooled to Take it out at room temperature.

[0039] Step 3, a cleaning of rough copper

[0040] After step 2, put the rough copper into the cleaning line for cleaning, firstly carry out alkali cleaning, then pickle, and finally use brush rollers to grind (here is the first cleaning of the rough copper, the thickness of the rough copper is still Subsequent multi-pass rolling is required, and the surface quality is not r...

Embodiment 2

[0055] Same as Example 1, the difference is that in this example, the specific annealing process of step 2 and step 5 is as follows: put the rough copper material into the bell furnace, heat up to 420 ° C after 4 hours, then keep the temperature for 6 hours, and the insulation is over. After cooling to room temperature, take out. In this embodiment, when the copper blank is rolled, the rollers of the rolling mill use a high-precision numerically controlled roller grinder to precisely grind the surface of the rollers, so that the surface roughness of the rollers is adjusted to 0.23 / um. The process paper selected in this embodiment is quantitative 40g / ㎡ cigarette paper.

Embodiment 3

[0057] Same as Example 1, the difference is that in this example, the specific annealing process of step 2 and step 5 is as follows: put the rough copper material into the bell furnace, heat up to 450 ° C after 4.5 hours, then keep the temperature for 6.5 hours, and the insulation is over. After cooling to room temperature, take out. In this embodiment, when rolling the copper blank, the rolls of the rolling mill use a high-precision CNC roll grinder to fine-grind the surface of the rolls, so that the surface roughness of the rolls is adjusted to 0.22Ra / um. The process paper selected in this embodiment is: The basis weight is 38g / ㎡ of cigarette paper.

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Abstract

The invention discloses a technology improving scratches on the surface of a copper material used for an LED lamp support and belongs to the field of quality control over the surface of the copper material used for the LED lamp support. The technology includes rough rolling, primary annealing, primary cleaning, primary rolling, secondary annealing, secondary cleaning, secondary rolling, third-time cleaning and other steps. During primary rolling and secondary rolling, the surfaces of rollers of a rolling mill are fine ground through a high-precision numerical control roll grinder; the surfaces of the rollers directly make contact with the copper material; and the surface of the copper material is ground. During secondary cleaning and third-time cleaning, no brush rollers are adopted for grinding, and uneven grinding and brush marks are avoided. When the blank copper material is conveyed between the procedures, a layer of cigarette paper is flatly laid on the surface of the blank copper material, and friction scratches caused by direct contact between layers and the friction scratch problem which cannot be solved on equipment are avoided. By means of the technical scheme, the friction scratches generated in the production process can be substantially reduced, and the surface quality of products is improved.

Description

technical field [0001] The invention relates to the technical field of surface quality control of copper materials used for LED lamp brackets, and more specifically relates to a process for improving scratches on the surface of copper materials used for LED lamp brackets with a thickness greater than 1.0mm. Background technique [0002] The LED lamp bracket is the bottom base of the LED lamp bead before packaging. On the basis of the LED lamp bracket, the chip is fixed in, the positive and negative electrodes are soldered, and then packaged with packaging glue. LED light brackets generally use copper as the base material (currently there are iron, aluminum, and ceramics, etc.), because copper has good conductivity, and other metals such as silver are plated on the surface of the copper to facilitate welding and packaging; there will be Lead wires to connect the electrodes inside the LED lamp bead. After the LED lamp bead is packaged and formed, the lamp bead can be removed f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B45/02B21B27/00C22F1/08
CPCB21B1/22B21B27/005B21B45/0269C22F1/08
Inventor 孙红刚盛代华梅桂林刘建新文志凌
Owner ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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