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Wide edge variable base hard alloy metal sheet for alloy drill bit

A technology of alloy drill bits and hard alloys, which is applied in the direction of drill bits, drilling equipment, earthwork drilling and mining, etc. It can solve the problems of high product cost, missing welding, lack of welding, and leaving gaps, etc.

Inactive Publication Date: 2007-03-07
赵庆法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the value of the alloy sheet is very high, the waste of the remaining alloy sheet is large, and the product cost is high
For this reason, some people made the bottom surface of the long side of the alloy sheet into an upward arc, which is similar to an arch. Although this structure can save material, the bottom of the alloy sheet and the bit body are welded by copper solder, and the long side is arched. When the bottom surface is brazed, it is very easy to cause missing welding, lack of welding, and leave gaps, which will cause the alloy sheet to break and be scrapped during rock drilling

Method used

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  • Wide edge variable base hard alloy metal sheet for alloy drill bit
  • Wide edge variable base hard alloy metal sheet for alloy drill bit
  • Wide edge variable base hard alloy metal sheet for alloy drill bit

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Embodiment Construction

[0014] The invention discloses a cemented carbide sheet with a wide side and variable bottom surface for an alloy drill bit, which refers to an alloy sheet of a straight, cross, X-shaped, and three-edged drill bit, which consists of a main body 1 and a tip 2 of the alloy sheet. Composed, the long side bottom surface of the alloy sheet can be a plane 5, as shown in Figure 2 and Figure 3, its main technical feature is that the wide side bottom surface of the alloy sheet is a concave bottom surface. The broadside refers to the end face. If it is inline, it refers to the two ends (both ends). As shown in Figure 3, the A direction, the concave bottom surface is the concave curvature of the bottom line. As shown in FIG. 5 , the concave bottom surface is an arc-shaped concave bottom surface. A change from the flat bottom of the prior art. The concave bottom surface varies a lot. As shown in FIG. 1 , the wide-side bottom surface is a mixed bottom surface combining a flat surface 32 a...

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Abstract

This invention relates to alloy drilling pin wide edge and variable bottom hardware alloy, which takes shapes of '-','+', X, which comprises alloy body part and end part and is characterized by concaved surface wide bottom. Due to bottom each shape the area between alloy bottom and pin weld surface is enlarged and due to weld not only on bottom and two long edges of alloy the wide edge bottom changes full of copper liquid to improve welding degree.

Description

technical field [0001] The invention relates to a drill bit alloy sheet or an integral drill alloy sheet for mining ore, belonging to mining and exploration tools. Background technique [0002] When mining metal mines, stone mines, and water conservancy and hydropower engineering tunnels, drill bits are required, and the drill bits are easy to wear. Therefore, cemented carbide sheets are embedded in the drill bits. Due to the different shapes of the drill bits, among them, the sheet drill bits can be divided into one-shaped, cross-shaped, X-shaped, three-edged, etc., and the shape of the inlaid alloy sheet also changes accordingly. According to actual use, the wear of the alloy sheet on the drill bit starts from the tip and the outer end. When the tip and the outer end are worn out in rock drilling, the alloy sheet is ground together with the drill bit body (steel material), and the head Grind the upper part into a sharp corner before using it, and us...

Claims

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Application Information

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IPC IPC(8): E21B10/46
Inventor 赵玲飞吴东列陈晓阳
Owner 赵庆法
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