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What is the CVD diamond

CVD synthetic diamond is an acronym for chemical vapor deposition diamond, pure diamond polycrystalline structure, no cutting surface, no metal binder. More SuperHard offers a full range of CVD diamond grinding, cutting, dressing, coating, thermal and wear - part solution and service

 

1. CVD diamond plates for cutting tools

cvd diamond tip for cutting tools cvd diamond blans for cutting tools

Benefit:

- Because the concentration of atomic hydrogen produced by arc discharge is relatively high, the CVD tool blank processed by the DC arc plasma jet also has a higher thermal conductivity than the tool blank processed by other methods even at higher grown rate. This shows that CVD is obviously beneficial to heavy high-speed cutting operations.

- The CVD diamond tool is made with CVD diamond blanks without any binder, sharing the same surface smooth finish as the natural single crystal diamond.

- The working life of CVD diamond cutting tools are 100 times higher than that of hard alloy.

 

Applications: non ferrous materials, ceramic, abrasive composites, high silicon - content aluminum alloy, graphite and other difficult machining materials.

 

2. CVD diamond for optical windows

cvd diamond for optical windows cvd diamond for optical windows

The high-quality CVD diamond has excellent optical performance, it has high optical transparency in х -RAY, UV, visible lightinfrared light, even up to the millimeter-wave.

Excellent transparency in the optical, high thermal conductivity, extraordinary high hardness and high fracture toughness, and very low thermal expansion coefficient make cvd diamond an ideal material for highly demanding optical window the broad band optical transparency

 

Applications: for optical windows. Such as high power laser windows, high power micromave windows and durable windows, etc

 

The properties of optical grade CVD diamond

Transmission

225nm To Far Ir 70% @10μm

Refractive Index

2.38 @ 10μm, 2.41@500 Nm

Absorption Coefficien

<=0.10 Cm^-1 @10 Μm

Bandgap

5.45ev

Double Side Surface Roughness

Ra 10nm

Flatness

4um/Cm

Thickness <= 0.3mm Diameter<= 20mm

 

 

3. CVD diamond blanks for dressing tool

cvd diamond dressing cvd diamond dressing cvd diamond roller

Chemical vapor deposition(CVD) for dressing tools is made by laser cutting CVD diamond thin-film. CVD diamond blanks are suitable for various dresser tools,

- Single - point cvd dresser

- Multi - point cvd dresser,

- CVD rotary dresser,

- CVD diamond dressing roller

 

CVD diamond blanks produced by the high quality semitransparent polycrystalline diamond, with no binder phase, have excellent thermal stability and high thermal conductivity.

 The product grade includes (standard grade and high quality grade) 

Performance

Standard

High Quality

Vicker Hardness

8000 Kg/Mm^2

10000 Kg/Mm^2

Density

3.51g/Cm^3

3.51g/Cm^3

Young’s Modulus

1000 Gpa

1100 Gpa

Thermal Conductivity

1000w/M.K

1500w/M.K

Chemical Stability

Insoluble In All Of Acid And Alkali

Break Strength

350 Mpa

550 Mpa

Wear Ratio

200000

400000

Thermal Stability

800°C

800°C

4. CVD diamond wire drawing die blank 

cvd diamond die blanks cvd diamond die blanks

Wire drawing is a metal-working process relies on a combination of a die and/or a series of dies to pull or draw a wire to a chosen gauge and is utilized to reduce the cross section of a wire.
They consist of a metal case and a nib made from monocrystalline diamond or polycrystallie diamond (PCD) or CVD diamond.
Applications : wire drawing of stainless steel, tungsten, molybdenum, copper, aluminum and others alloy, etc
 
Size of CVD diamond die blanks

Product

Size (mm)

                 Shape

CVD Serie

D

T


             

D----the diameter

T-----the thickness

               

CVDD2010

2.0

1.0

CVDD2512

2.5

1.2

CVDD3015

3.0

1.5

CVDD4020

4.0

2.0

CVDH4020

4.0

2.0

 

5. CVD Diamond for thermal management / CVD diamond heat sinks (CVDK)

 

cvd diamond plates, cvd diamond seed  cvd diamond plates, cvd diamod sheet

CVD diamond has very good insulation performance, which makes it an ideal material for making electronic cooling devices. Our CVD diamond can reach 1200- 2000W/m.k, and we can do one side polish finish or both sides polish finish according to your request.
Applications: High power electronic and optoelectronic devices. Such as high power integrated circuits, microwave diodes and laser diodes, etc

 

 

Inquiry

You are our number one priority. We have tools available to assist in your product inquiries and general questions.

  • Applications of PCBN tools
    09 November 2021

    Applications of PCBN tools

    Because of PCBN has high hardness and wear resistance, do not react with iron group metals at high temperature of chemical inertness, so it is mainly used for high hardness material and machining of difficult-to-machine materials, such as hardened steel, high alloy wear resistant cast iron, high temperature alloy, high speed steel, surface spray welding materials, sintered metal materials machining difficult-to-machine materials.

  • Advantages of processing aluminum with PCD tool
    04 November 2021

    Advantages of processing aluminum with PCD tool

    How to select PCD tool? Generally speaking, the larger the PCD size, the stronger the tool wear resistance. Usually finishing or super finishing, the selection of fine particle PCD, and coarse particle PCD tool selection. Tool manufacturers often recommend the use of fine particle PCD grades for silicon-free and low-silicon aluminum alloys and the use of coarse-particle PCD grades for high-silicon aluminum alloys for the same reason. PCD tool processing surface quality in addition to see the granularity of the tool, also mainly depends on the quality of the cutting edge of the tool, so the quality of PCD tool must be better. PCD cutting edge common processing methods generally have two kinds, one is through the way of slow-feeding wire cutting processing, this way of processing cost is low, but the quality of the edge is general. And the other is through laser to rough machining, the cost is slightly higher, but the quality of the edge is much better than slow-feeding wire cutting processing. There is another is to use laser rough machining and then grinding to finish, the edge quality is best.

  Add:  Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China

  Tel: +86 13323855288

  WhatsApp:+86 13323855288

  E-mail: pcd@moresuperhard.com