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Diamond thin-wall drilling tool bit

A diamond and thin-wall drill technology, applied in stone processing equipment, stone processing tools, manufacturing tools, etc., can solve problems such as complicated operation steps, achieve high construction safety, good heat dissipation and chip removal performance, and improve work efficiency.

Active Publication Date: 2020-05-05
JIANGSU FENGTAI TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of cooling water during drilling is not only complicated in operation steps, but also brings certain safety risks to construction personnel. Therefore, it is necessary to provide a diamond knife that does not need to be connected to water cooling facilities and can maintain fast drilling speed and good heat dissipation and chip removal performance. head

Method used

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  • Diamond thin-wall drilling tool bit

Examples

Experimental program
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Effect test

example 1

[0026] This example provides a figure 1 The diamond thin-walled drill bit of the structure shown has a height of 9 mm, a length of 21 mm, and a thickness of 2.5 mm. The depth of the U-shaped groove is 1 / 3 of the height H of the cutter head, the height of the inverted U-shaped groove is 1 / 3 of the height H of the cutter head, and the depth of the shallow groove is 1 / 5 of the width W of the cutter head. The composition of the metal bonding agent in the cutter head is: electrolytic copper powder 35wt%, cobalt 5wt%, atomized tin powder 5wt%, carbonyl nickel powder 3wt%, electrolytic iron powder 52wt%. Diamond is used as the hard particles, and the strength of the diamond particles is 30 kg, the particle size is 30 / 40, and the concentration is 25%. The sintering is carried out under N2 protective atmosphere, the temperature is 870℃, and the holding time is 60min.

example 2

[0028] This example provides a figure 1 The diamond thin-walled drill bit of the structure shown has a height of 9 mm, a length of 21 mm, and a thickness of 2.5 mm. The depth of the U-shaped groove is 1 / 3 of the height H of the cutter head, the height of the inverted U-shaped groove is 1 / 3 of the height H of the cutter head, and the depth of the shallow groove is 1 / 5 of the width W of the cutter head. The composition of the metal bond in the cutter head is: 20wt% of electrolytic copper powder, 3wt% of cobalt, 5wt% of atomized tin powder, 5wt% of carbonyl nickel powder, 10wt% of FeCoCu ultrafine alloy powder, 5wt% of high chromium cast iron powder, electrolytic iron Powder 52wt%. Diamond is used as the hard particles, and the strength of the diamond particles is 30 kg, the particle size is 30 / 40, and the concentration is 25%. Sintered in N 2 It is carried out under a protective atmosphere, and the temperature is kept at 720°C for 20 minutes and at 820°C for 40 minutes.

example 3

[0030] This example provides a figure 1 The diamond thin-walled drill bit of the structure shown has a height of 9 mm, a length of 21 mm, and a thickness of 2.5 mm. The depth of the U-shaped groove is 1 / 3 of the height H of the cutter head, the height of the inverted U-shaped groove is 1 / 3 of the height H of the cutter head, and the depth of the shallow groove is 1 / 5 of the width W of the cutter head. The composition of the metal bond in the cutter head is: electrolytic copper powder 30wt%, cobalt 3wt%, atomized tin powder 5wt%, carbonyl nickel powder 5wt%, FeCoCu ultrafine alloy powder 10wt%, high chromium cast iron powder 10wt%, electrolytic iron Powder 37wt%. Diamond is used as the hard particles, and the strength of the diamond particles is 30 kg, the particle size is 30 / 40, and the concentration is 25%. Sintered in N 2 It is carried out under a protective atmosphere, and the temperature is kept at 720°C for 20 minutes and at 820°C for 40 minutes.

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Abstract

The invention relates to a diamond thin-wall drilling tool bit and belongs to the technical field of drilling tools. The diamond thin-wall drilling tool bit is formed by cold pressing and sintering hard particles and a metal binder, and the hard particles comprise diamond. The tool bit is arc-shaped in the length direction, and the bottom surface of the tool bit is a plane. The tool bit comprisesa middle tooth section and side tooth sections positioned on two sides of the middle tooth section, and connecting sections are arranged between the side tooth sections and the middle tooth section. Lip surfaces of the middle tooth section and the side tooth sections are formed by at least two continuous semicircular teeth, the upper parts of the connecting sections are provided with U-shaped grooves, and a plurality of shallow grooves are formed in the inner and outer side surfaces of the side tooth sections, the connecting sections and the middle tooth section of the tool bit in the length direction at intervals. According to the diamond thin-wall drilling tool bit, water does not need to be added for cooling in the drilling process, the heat dissipation and chip discharging performanceis good, the sharpness is high, the impact resistance of a perforating drill is lower, teeth falling are unlikely to occurring, the operation safety is good, and the working efficiency is greatly improved.

Description

Technical field [0001] The invention relates to the technical field of drilling tools, and more specifically, the invention relates to a diamond thin-wall drill bit. Background technique [0002] As a major drilling and cutting tool, diamond thin-wall drills have a wide range of applications. Diamond thin-wall drills are mainly used for construction, structural transformation, etc., and can also be used for stone processing. It has the characteristics of high quality, low price, fast and clean in drilling into reinforced concrete. For example, it can be used to drill holes on the walls or floors of buildings to install plumbing, ventilation, and cables. It can also be used for building renovation and excavation. This kind of incision can also be widely used in road construction fields such as pavement drilling construction. [0003] The diamond thin-wall drill mainly includes three parts: joint, tube body and diamond bit. In order to improve processing efficiency and service lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D1/14C22C30/02C22C30/04C22C38/16C22C38/10C22C38/08
CPCB28D1/146C22C30/02C22C30/04C22C38/008C22C38/105C22C38/16
Inventor 邱瑜铭方利灵董先龙
Owner JIANGSU FENGTAI TOOLS
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