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Cover layer seal film for strain gauge, and production method and using method thereof

A strain gauge and sealing film technology, which is applied in the field of cover sealing film for strain gauges, can solve problems such as unstable quality, poor product consistency, and low manual production efficiency, and achieve improved dimensional consistency, high production efficiency, and pasting accuracy high effect

Inactive Publication Date: 2018-04-20
ZHONGHANG ELECTRONICS MEASURING INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method for sealing strain gauges. The sealing surface of the cover layer is used to seal the strain gauges, which can realize the automatic sealing of the whole plate of the strain gauges, and the sealing method with high precision can satisfy the cover layer sealing of most strain gauges; It solves the problems of low efficiency, unstable quality and poor product consistency in the existing manual production

Method used

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  • Cover layer seal film for strain gauge, and production method and using method thereof
  • Cover layer seal film for strain gauge, and production method and using method thereof
  • Cover layer seal film for strain gauge, and production method and using method thereof

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preparation example Construction

[0041] The invention provides a preparation method of the cover sealing film for the above-mentioned strain gauge, comprising the following steps:

[0042] Step S1, coating the adhesive layer 4 on the surface of the sealing layer of the strain gauge cover layer 1, curing it at 60-120°C for 0.5-4h, pasting the cover layer release paper 8 on the adhesive layer to obtain the following: figure 2 The complete overlay seal film shown, then a number of marking points are made on the strain gage overlay 1.

[0043] Step S2, cutting off the position of the strain gauge cover layer 1 and the corresponding strain gauge pad 2 by mechanical or laser means, so that the position is hollowed out, and the following is obtained: image 3 and 7 The cap layer sealing film after hollowing out is shown as the cap layer sealing film; the precision of cutting is ±0.03mm.

[0044] For the convenience of storage and use, the cover seal film is made into a roll.

[0045] Preferably, the curing tempe...

Embodiment 1

[0054] Such as figure 2 As shown, firstly, a complete cover sealing film not larger than 110×250mm is prepared, and then the corresponding position on the cover sealing film is cut mechanically or by laser according to the shape and size of the corresponding strain gauge pad 2, and at the same time, the The four corner positions of the sealing film are cut to obtain marking points, forming such as image 3 As shown in the hollowed out structure, then use the cover layer fake sticking machine to identify the marking points on the cover layer sealing film and the strain gauge substrate 3 respectively, and then make them correspond one by one, such as image 3 and 4 As shown, the specific strain gauge base marking point A51 corresponds to the strain gauge cover layer marking point A61, the strain gauge base marking point B52 corresponds to the strain gauge cover layer marking point B62, and the strain gauge base marking point C53 corresponds to the strain gauge cover layer mark...

Embodiment 2

[0056] First, a complete cover sealing film not larger than 110×250mm is prepared, and then the corresponding position on the cover sealing film is cut mechanically or by laser according to the shape and size of the corresponding strain gauge pad 2, and at the same time, the cover sealing film The four corner positions of are cut to obtain marked points, forming such as Figure 7 As shown in the hollowed out structure, then use the cover layer fake sticking machine to identify the marking points on the cover layer sealing film and the strain gauge substrate 3 respectively, and then make them correspond one by one, such as Figure 7 and 8 As shown, the specific strain gauge base marking point A51 corresponds to the strain gauge cover layer marking point A61, the strain gauge base marking point B52 corresponds to the strain gauge cover layer marking point B62, and the strain gauge base marking point C53 corresponds to the strain gauge cover layer marking point Corresponding to ...

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Abstract

The invention discloses a cover layer seal film for a strain gauge, and a production method and a using method thereof. The cover layer seal film comprises a strain gauge cover layer, the seal layer surface of the strain gauge cover layer is provided with an adhesive layer, and the adhesive layer is adhered with cover layer release paper, wherein the strain gauge cover layer is provided with a plurality of marking points, and positions, corresponding to strain gauge bonding pads, of the strain gauge cover layer, are hollow-out; and the cover layer seal film is used for sealing the whole straingauge. The cover layer seal film can realize the automatic sealing of the whole gauge strain, especially special-shaped pattern sealing which cannot be realized through a conventional technology, allows the alignment precision to be 3 times higher than that the manual alignment precision, improves the sealing efficiency by 5 times or more, and completely solves the problems of low efficiency, unstable quality and poor product consistence of existing artificial production.

Description

technical field [0001] The invention relates to the technical field of strain gauge sealing, in particular to a cover layer sealing film for a strain gauge, a preparation method and a use method thereof. Background technique [0002] The sealing of the strain gauge cover layer is one of the core processes in the production process of the strain gauge. On the one hand, the cover layer can play an insulating role, and on the other hand, it can effectively protect the sensitive grid of the strain gauge from mechanical damage, which will cause the strain gauge to be unusable. [0003] At present, the main method of sealing the strain gauge is to prepare a large sealing film first, cut the sealing film into strips, manually apply glue to the strip sealing film, and then seal the coated strip with the help of light source, positioning marks, and auxiliary tools. The membrane is bonded to the strain gauges to form a seal. [0004] In this method, before the worker seals the strain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B29/00B32B37/12B32B38/00B32B3/24G01B21/32
CPCB32B7/12B32B3/266B32B29/002B32B37/12B32B38/0004G01B21/32
Inventor 晏志鹏杨超薛松刘建群王玲李文渊李永江赵家辉任博哲赵凯锋张勋
Owner ZHONGHANG ELECTRONICS MEASURING INSTR
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