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Manufacturing method of wiper blade

A technology for cleaning scraper and manufacturing method, applied in scraper, papermaking, papermaking and other directions, can solve the problems of poor temperature resistance, waste, stained with black marks, etc., and achieves good wear resistance, simple preparation method and good flexibility Effect

Active Publication Date: 2012-04-25
河北惠卓新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the scrapers used in papermaking machinery are steel scrapers or epoxy resin scrapers. During the production process, steel scrapers are hard and have poor toughness, which can easily scratch the rollers. In this way, manufacturers waste time in repairing rollers and cause a lot of economic losses. ;Epoxy resin scraper is brittle and has poor temperature resistance. During use, the blade can easily become jagged and scratch the blanket, causing shutdown. Poor temperature resistance makes the blade soft, and the dirt on the roller cannot be scraped off. When making writing paper with graphite powder, it is easy to lose color and cause black marks on the white paper, so it is scrapped and wastes a lot

Method used

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  • Manufacturing method of wiper blade
  • Manufacturing method of wiper blade
  • Manufacturing method of wiper blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] [1], the manufacture method of cleaning scraper, its steps are as follows:

[0037] (1) Preparation of cleaning blade base material: The cleaning blade base material is all made of glass fiber cloth, and a layer of silicon carbide fiber cloth is sandwiched in the middle of the inner layer, which is prepared by bonding with a binder; that is, the glass fiber cloth is pre-treated After dipping, cutting, and laying, a layer of silicon carbide fiber cloth is sandwiched in the middle of the inner layer, and then heated and cured under pressure. Specifically, the glass fiber cloth is glued with the prepared liquid resin glue at high temperature, and then laid layer by layer according to the requirements. After heating and pressurizing, it is pressed and solidified into a plate, and then the plate is slit, ground, and edged. The edge of the edge is the edge A, and the edge angle α (that is, the angle between the edge and the horizontal) is shown in figure 2 shown. According...

Embodiment 2

[0049] [1], the manufacture method of cleaning scraper, its steps are as follows:

[0050] (1) Preparation of cleaning blade base material: The cleaning blade base material is mainly composed of carbon fiber cloth and glass fiber cloth, and a layer of zirconium corundum fiber cloth is sandwiched in the middle of the inner layer. The adhesive is a liquid resin glue, which is made by adding the following other components to 100 parts by weight of phenolic epoxy resin NPPN638S. The weight parts of the other components are as follows:

[0051] 10 parts of epoxy resin toughening agent; 8 parts of dicyandiamide; 0.003 parts of imidazole;

[0052] 30 parts of dimethylformamide (DMF); 42 parts of acetone; 20 parts of silicon powder;

[0053] 1.5 parts of molybdenum disulfide; 1 part of silicon carbide; 1 part of zirconium corundum.

[0054] (2), put carbon fiber cloth (20%) and glass fiber cloth (80%), sandwich a layer of zirconium corundum fiber cloth at the middle of the inner layer...

Embodiment 3

[0063] [1], the manufacture method of cleaning scraper, its steps are as follows:

[0064] (1) Preparation of cleaning blade base material: The cleaning blade base material is mainly composed of carbon fiber cloth and glass fiber cloth, and a layer of silicon carbide fiber cloth is sandwiched in the middle of the inner layer. The adhesive is a liquid resin glue, which is made by adding the following other components to 100 parts by weight of phenolic epoxy resin KEF-1138. The weight parts of the other components are as follows:

[0065] 18 parts of epoxy resin toughener; 12 parts of dicyandiamide; 0.008 parts of imidazole;

[0066] 45 parts of dimethylformamide (DMF); 50 parts of acetone; 30 parts of silicon powder;

[0067] 1.5 part of molybdenum disulfide; 0.7 part of silicon carbide; 0.7 part of zirconium corundum.

[0068] (2), put carbon fiber cloth (20%) and glass fiber cloth (80%), sandwich a layer of silicon carbide fiber cloth at the middle of the inner layer, and t...

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Abstract

The invention discloses a manufacturing method of wiper blade. The manufacturing method comprises the following steps of: (1) preparing a base material by sandwiching and then bonding a silicon carbide layer between a carbon fiber fabric and a fiberglass fabric or between fiberglass fabrics, wherein a bonder is liquid resin glue which is prepared by adding5 to 18 parts of epoxy resin toughening agent, 8 to 12 parts of dicyandiamide, 0.003 to 0.008 parts of imidazole, 24 to 48 parts of dimethyl formamide, 40 to 60 parts of acetone, 12 to 35 parts of silica micropowder, 1.5 parts of molybdenum disulfide, 0.5 to 1 part of silicon carbide and 0.5 to 1 part of zirconium corundum into 100 parts of novolac epoxy resin; and (2) predipping the base material with glue, cutting the base material into pieces, spreading the pieces, raising the temperature to cure the pieces into a plate, dividing the plate into strips, grinding the strips and edging each strip. The wiper blade is high temperature resistant, good in strength, strong in decontamination capacity of a dryer part, and simple and convenient in manufacturing.

Description

(1) Technical field: [0001] The invention relates to a resin blade, in particular to a cleaning blade used for relatively dirty drying cylinders and calender rolls with hard dirt adhered to, and a manufacturing method thereof, belonging to the technical field of papermaking equipment supporting tool manufacturing. (2) Background technology: [0002] At present, the scraper used in papermaking machinery is steel scraper or epoxy scraper. During the production process, the steel scraper is hard and has poor toughness, and it is easy to scrape the roller. In this way, the manufacturer wastes time repairing the roller and causes a lot of economic losses. ;The epoxy resin scraper is brittle and has poor temperature resistance. During use, the blade can easily become serrated and scratch the blanket and cause downtime. The poor temperature resistance makes the blade soft, and the dirt on the roller cannot be scraped off, especially in When making writing paper and adding graphite ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21G3/02D21G3/04C09J163/04D06M15/55D06M17/04
Inventor 彭俊超
Owner 河北惠卓新材料有限公司