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Diamond inner circle cutting blade and preparation method thereof

A diamond and circular cutting technology, which is applied in the field of tools for cutting precious gemstones, can solve the problems of short service life of diamond internal circular cutting blades, and achieve the effects of improving service life, increasing the number of layers arranged, and reducing the thickness of blades

Active Publication Date: 2016-10-26
CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diamond inner circle cutting blade prepared by this method cannot increase the thickness of the coating due to the thickness of the knife edge within 0.24-0.40mm. Due to the limitation of the thickness of the coating, the number of diamond layers in the coating is small, and the diamond coating is very thin during use. It will be completely stripped off quickly, so that the edge of the knife will not come out, resulting in a shorter service life of the existing diamond inner circle cutting blade

Method used

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  • Diamond inner circle cutting blade and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] Example 1: Diamond inner circle cutting blade

[0039] like figure 1 As shown, the diamond inner circular cutting blade according to the present invention includes a circular base body, and the circular base body has a symmetrical structure with its axis as the center line, wherein:

[0040] The circular base includes a first main surface 1, a second main surface 2 opposite to the first main surface 1, a third main surface 3, a fourth main surface 4 opposite to the third main surface 3, and an outer circumference a first side surface 5 of the edge and a second side surface 6 at the inner peripheral edge;

[0041] The third main surface 3 and the fourth main surface 4 are respectively formed by extending a certain distance outward from the upper and lower ends of the second side surface 6 toward the direction of the first side surface 5, and the third main surface 3. The width in the radial direction of the circular base is equal to the width of the fourth main surface...

Embodiment 2

[0047] Embodiment 2: the preparation method of diamond inner circle cutting blade described in the present invention

[0048] 1) Select a circular substrate, which is made of high-strength stainless steel with a thickness of 0.12mm, has a first main surface 1, a second main surface 2 opposite to the first main surface 1, and a The first side surface 5 and the second side surface 6 located at the inner peripheral edge;

[0049] 2) Extend 2 mm outwards from the upper and lower ends of the second side surface 6 toward the direction of the first side surface 5 by laser engraving to form a third main surface 3 and a fourth main surface opposite to the third main surface 3, respectively. The main surface 4, that is, the width of the third main surface 3 and the fourth main surface 4 in the radial direction of the circular base is 2mm; wherein, the third main surface 3 and the first main surface 1 pass through the first ring The side 7 is connected, and the first annular side 7 is p...

Embodiment 3

[0064] Embodiment 3: the preparation method of diamond inner circle cutting blade described in the present invention

[0065] Repeat Example 2, the difference is:

[0066] In step 3.1):

[0067] The composition of the first electrochemical coating agent is: NiCl 2 ·6H 2 O 250g / L, NiSO 4 ·7H 2 O 260g / L, concentrated hydrochloric acid 175g / L;

[0068] The process of the first coating is: the current density is 8A / dm 2 , the temperature is 35°C, and the time is 2min;

[0069] In step 3.2):

[0070] The composition of the second electrochemical coating agent is: Ni(NH 2 SO 3 ) 2 4H 2 O 320g / L, NiCl 2 ·6H 2 O20g / L, H 3 BO 3 30g / L, C 12 h 25 SO 4 Na 0.04g / L;

[0071] The process of the second coating is: the current density is 0.1A / dm 2 , the temperature is 35°C, and the time is 4min;

[0072] In step 3.3):

[0073] The composition of the second electrochemical coating agent is the same as step 3.2).

[0074] The process of the third coating is: the current de...

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Abstract

The invention discloses a diamond inner circle cutting blade and a preparation method thereof. The diamond inner circle cutting blade comprises a round matrix which comprises a first main surface, a second main surface, a third main surface, a fourth main surface, a first side surface located on the edge of the outer circumference, and a second side surface located on the edge of the inner circumference; the third main surface and the fourth main surface are correspondingly formed in the manner that the upper end and the lower end of the second side surface extend outwards in the direction of the first side surface by equal distances; the third main surface and the first main surface are connected through a first annular side face; the fourth main surface and the second main surface are connected through a second annular side face; the height of the first annular side face in the axial direction of the round matrix is equal to that of the second annular side face in the axial direction of the round matrix; and the third main surface, the fourth main surface and the second side surface are each provided with a diamond coating containing diamond particles.

Description

technical field [0001] The invention relates to a tool for cutting precious gems and jade, in particular to a diamond inner circle cutting blade and a preparation method thereof. Background technique [0002] Diamond inner circle cutting blade is a kind of diamond tools, mainly used for processing precious materials, such as artificial crystals, natural gemstones, precious ceramics and other hard materials, with small kerf, good cutting flatness, high grinding efficiency, etc. advantage. [0003] The manufacturing method of the existing diamond inner circle cutting blade is to directly composite electroplate nickel diamond on the stainless steel substrate from the surface where the inner circle knife edge is located to extend 2.0-3.0mm toward the outer peripheral surface of the substrate. The diamond inner circle blade made by this method is widely used because of its simple manufacturing process and the ability to realize large-scale production. However, the diamond inner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D5/02C25D3/12C25D15/00C25D7/00
CPCB28D5/022C25D3/12C25D7/00C25D15/00
Inventor 陈家荣林峰陈超
Owner CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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