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Double-sided bonding method and application of cemented carbide strips suitable for cemented carbide hard surface processing

A technology of hard alloy and alloy strips, which is applied in metal processing equipment, material gluing, earthwork drilling and mining, etc., can solve the problems of high cost, unguaranteed precision, and low efficiency of hard alloy strips, so as to improve wear resistance, The effect of improving bonding accuracy and improving bonding efficiency

Active Publication Date: 2017-07-11
株洲金韦硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a double-sided adhesive bonded cemented carbide strip suitable for cemented carbide hard surface processing in view of the defects of low efficiency, high cost and unguaranteed precision in the bonding of existing cemented carbide strips. This method is simple, efficient, and highly accurate, and effectively solves the technical defect of manually placing and pasting cemented carbide strips to complete cemented carbide hard surface processing

Method used

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  • Double-sided bonding method and application of cemented carbide strips suitable for cemented carbide hard surface processing
  • Double-sided bonding method and application of cemented carbide strips suitable for cemented carbide hard surface processing
  • Double-sided bonding method and application of cemented carbide strips suitable for cemented carbide hard surface processing

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Effect test

Embodiment 1

[0054] This embodiment provides a positioning groove plate suitable for bonding cemented carbide strips in cemented carbide hard surface processing, and its structural schematic diagram is shown in the attached figure 1 shown. The positioning slot plate includes a base plate and an alloy bar positioning slot arranged on the base plate, and the size of the alloy bar positioning slot matches the size of the cemented carbide bar.

[0055] The base plate of the positioning groove plate and the positioning groove are an integrated structure, and the depth of the alloy strip positioning groove on the substrate is not greater than the thickness of the hard alloy strip. After placing an appropriate amount of hard alloy strips on the positioning groove plate, most of the hard alloy strips fall into the positioning grooves one by one, and the individual positioning grooves that do not fall into the hard alloy strips can be placed manually. The cemented carbide strips are swept off the ...

Embodiment 2

[0058] Based on the positioning groove plate described in Embodiment 1, this embodiment provides a bonding method suitable for cemented carbide strips in the processing of cemented carbide hard surfaces. The schematic diagram of the process flow is shown in the attached Figure 4 shown. The method comprises the steps of:

[0059] S1. Prepare the positioning groove plate;

[0060] S2. Put the hard alloy strip on the positioning slot plate, place the hard alloy strip on the positioning slot plate as required, and drop the excess hard alloy strip from the positioning slot plate;

[0061] S3. Bond the cemented carbide strip with a perforated tape, so that the cemented carbide strip and one side of the tape are firmly bonded;

[0062] This embodiment adopts double-sided adhesive tape (adhesive material is used on both sides of the adhesive tape), so that one side of the adhesive tape is bonded firmly to the hard alloy strip (the other side is ready to bond with the steel surface ...

Embodiment 3

[0073] This embodiment provides another positioning groove plate suitable for bonding cemented carbide strips in cemented carbide hard surface processing, and its structural schematic diagram is shown in the attached image 3 shown. The positioning slot plate includes a base plate and an alloy bar positioning slot arranged on the base plate, and the size of the alloy bar positioning slot matches the size of the cemented carbide bar.

[0074] The positioning slot plate includes a base plate and an alloy bar positioning slot arranged on the base plate. The base plate is composed of several liftable bosses, and the alloy bar positioning slot is a grid composed of several hollowed out slots. Only one tungsten carbide strip can be accommodated in the center; the boss can rise or fall from the corresponding slot hole position; the size of the boss and the slot match and match the size of the tungsten carbide strip . First, make the boss in the initial state, and the plane formed b...

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Abstract

The invention provides a double-sided bonding method applicable to hard alloy bars in the hard alloy hard-surface machining process and an application thereof. According to the method, a locating groove plate for bonding is scientifically designed; the hard alloy bars are arranged on the locating groove plate and bonded through perforated double-sided tape; the hard alloy bars or blocks are fixed through spot welding; the tape is placed on the steel surface of a component to be machined, and the steel surface is subjected to spray welding, surfacing and grinding and machined into the hard surface. The method is simple and easy to realize, the hard alloy bars are bonded at a time, the bonding efficiency is greatly improved, and the defects that bonding angles are different and bonding intervals are uneven due to manual operation are overcome, the bonding accuracy is improved, and high-efficiency combination of the bonding plate to which the hard alloy bars adhere and the surface to be machined is effectively achieved through the double-sided tape, and operation is simplified. Through the method, the abrasion resistance of the hard surface of the product is effectively guaranteed and improved; the method can be well applied to hard surface machining of centering devices or TC bearings for mining drilling tools and screw drilling tools.

Description

technical field [0001] The present invention relates to the technical field of cemented carbide material manufacturing, more specifically, relates to a method for bonding a large amount of small-sized cemented carbide and its application to the bonding of alloy blocks on the surface of centralizers or TC radial bearings for screw drilling tools Applications. Background technique [0002] Exploitation drilling tool or screw drilling tool is a volumetric downhole dynamic drilling tool that uses drilling fluid as power and converts fluid pressure energy into mechanical energy. It plays an important role in the drilling field. [0003] Centralizers and TC bearings (radial bearings) are important parts of drilling tools, such as TC bearings, which bear the lateral force generated by the rotation of the drill bit and cardan shaft in the screw drilling tool. The key component of the service life of the tool. [0004] The surface of the centralizer and the TC bearing needs to be w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02E21B17/10
CPCB23K31/02F16B11/006
Inventor 刘能文汪文斋杨宇向勇
Owner 株洲金韦硬质合金有限公司