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A production process of stainless steel lattice friction plate

A production process, stainless steel technology, applied in the field of photochemical etching, can solve the problems of not reaching the uniformity of the full-board array dots, uneven distribution of dots on the full-board, and high failure rate of semi-finished products, and achieve the setting of spray pressure. Reasonable, good uniformity, and the effect of improving production efficiency

Inactive Publication Date: 2015-11-25
嵊州市迪凯电子有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. During the single-sided etching process, due to the long etching time, the resist layer (photosensitive adhesive) will produce floating glue, which will cause the product to be scrapped, and there is a problem of uneven distribution of dots on the whole board
[0005] 2. Large-area exposure, there is a big difference in light intensity between the center of the light source and the edge around the board, resulting in a high failure rate of semi-finished products after exposure
[0006] 3. Etching is performed according to the conventional process, and the uniformity of the dots in the full board array cannot be achieved.
[0008] 5. There is damage on the back of the product after one-sided etching, which affects product quality

Method used

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  • A production process of stainless steel lattice friction plate

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Embodiment Construction

[0036] Please refer to shown in Figure 1, the production process of the present invention is as follows:

[0037] 1. Design and plate making: design dot matrix graphics through the computer CAD system, combine with photoplotter (resolution 16000DPI), draw the film negative with dot matrix graphics, and obtain the round dots on the film negative with a diameter of 0.198mm. The spacing is 0.5mm, and the arrangement angle of the dots is 15°.

[0038] In order to achieve the dot diameter and height required by the post-etching process, the side etching coefficient must be added when designing the plate. Among them, the data of the dot diameter of the plate making is 0.198mm is obtained after many times and repeated tests.

[0039] The film negative adopts the MYLAR type film produced by DuPont Company of the United States.

[0040] 2. Base material selection: The base material is a 304-type stainless steel plate with a thickness range of 0.40-0.48mm. In this embodiment, a substra...

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Abstract

The invention discloses a production technology for a stainless steel dot matrix friction plate and belongs to the technical field of optical chemical etching. The production technology comprises the following working procedures of: designing a plate, wherein the diameter of each round dot on the plate is 0.198mm; performing polish-brush treatment on a stainless steel base plate in a large area manner; performing silk-screening on the surface of the base plate for the second time, and drying photo-sensitive resist; exposing a film substrate coated on a photo-sensitive resist membrane layer of the base plate, wherein a light supplementation plate is arranged between a light source of an exposure machine and a base plate to be photo-sensed; developing, fixing and drying the film substrate; baking and firming a membrane at high temperature; dangling the base plate to be etched upside down in the air, etching the base plate through a lower sprayer of an etching machine, wherein etching liquid adopts liquid ferric trichloride with 46 percent of ferrous ions Fe<3+>; removing the membrane from the etched plate, and flushing and drying the membrane. Furthermore, after the step of firming the membrane and before the step of etching the base plate, a protection membrane layer is coated on the back of the base plate, so that the back of the plate is intact. The large-area stainless steel dot matrix friction plate obtained by using the production technology disclosed by the invention is high array-round-dot uniformity consistency, single-surface etching resistance, small light intensity error, high etching speed and god benefits.

Description

【Technical field】 [0001] The invention relates to a production process of a stainless steel lattice friction plate, belonging to the technical field of photochemical etching. 【Background technique】 [0002] Etch array dots with a diameter and height of 0.04-0.06mm and 0.10-0.12mm on the surface of 304 stainless steel with a large area (500×400mm) to form a friction plate. Sexual problems, the error should be controlled within ±0.01mm. [0003] Usually, the stainless steel etching process is mainly double-sided (surface and back) etching, and thin materials are mostly used, and the etching depth is about 0.05mm. If it is necessary to make a stainless steel lattice friction plate with a single-sided etching depth of 0.10-0.12mm and a dot diameter of 0.04-0.06mm, and the area of ​​the plate is as large as 500×400mm, it cannot be completed by conventional stainless steel etching technology. There are following deficiencies: [0004] 1. During the single-side etching process, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/02
Inventor 袁琳裘功科裘华见
Owner 嵊州市迪凯电子有限公司
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