What is CVD coating

 There are two different coating on tungsten carbide inserts. One is CVD coating, and the other one is PVD coating. Then, what is CVD coating?

CVD is chemical coating.

Turning tools with CVD coating: 

The chemical coating is based on cemented carbide substrate material, and the surface of the substrate is coated with Ti (C,N), AL2O3 and other other CVD coating materials with a thickness of 3-16um. As CVD coating is with better wear resistance & heat resistance & Oxidation resistnace, the chemical stability traits than cemented carbide, so CVD coating tools have a longer life time and are suitable for high-speed processing. 

Milling tools with CVD coating:

The chemical coating is based on cemented carbide substrate material, and the surface is coated with TiC, TiN, Al2O3 and other CVD coating materials with a thickness of 6-8um film by chemical coating method. Since the CVD coating has many advantages such as high hardness, heat resistance, excellent oxidation resistance, and good chemical stability traits, it has prolonging using longer life than cemented carbide tools, it is good capable of high-efficiency cutting processing.

What is the normal problems of corrugated board carbide cutting blades

For the corrugated board carbide cutting blades, what are the problems normally we meet? How are the problems caused? Here you can find the answer:

Problem 1:  Life Span is short

Caused 1: Is the grain size of the grinding wheel proper? Too coarse grain size will cause short working time.

Caused 2: Frequent grinding, long grinding time, high grinding pressure.

Problem 2:  The edge of corrugated boards are with burr and dent After cutting

Caused 1: The blade isn't sharp.

Caused 2: The corrugated board is too wet.

Problem 3:  The carbide cutting blades are crack

Caused 1: Improper Assembly. 

Caused 2: After assembly well, prohibited any improper tough with the blades.

Caused 3: Unstable swing of grinding wheel will make the blades cracked due to the bearing of grinding wheel damaged.

Caused 4: Accidentally hit the blades and cracked.

Problem 4:  Chips on the cutting edge after grinding

Caused 1: Unstable swing grinding wheels may cause the chip issue, even if the blades are broken.

Caused 2: The improper tough may cause the chips on the cutting edge.

Problem 5:  The edge of corrugated board isn't straight

Caused 1: The material of the carbide cutting blades aren't suitable for the corrugated board.

What is the Tungsten carbide?

 

Tungsten carbide is the hardest material on earth, and it is widely used in industrial fields.

 Tungsten carbide is called cemented carbide, it is an alloy material made of refractory carbide (WC) and binder metals by powder metallurgy. Normally the binder is Cobalt or Nickel. The WC powder are mixed with binder Co or Ni, compacted in a mold and then sintered in a vacuum furnace at temperatures no less than 1300°C

WC powder

Production Process

Ball milling&Spray Drying--> WC powder mixed up---> Pressing---> Sinter HIP---> Machining/grinding

HIP sinter furnace

 

Main features of tungsten carbide

*High hardness

*Good wear resistance

*High Strength

*Strong resistance to oxidation and corrosion

Applications of tungsten carbide

Tungsten carbide have a wide range of applications in many industry fields such as:

* Wear parts

* Cutting tools for wooden/metal/aluminium/no-ferros

* Metal forming tools

* Mining tools

* Petroleum and gas industry

Due to the applications, and the different material grades are designed accordingly. 

Happy Chinese New Year 2021

 May the Year of the Ox bring you good luck and good fortune!

The best wishes from the Solarsoncarbide Team

How does the mirror finish look like?

 Tungsten carbide strips, mirror finish, very nice!

HOW TO PACK THE CARBIDE STICK BLADES BLANKS

 The order of CARBIDE STICK BLADES BLANKS are ready, how to pack them? It is shown in the video:

threaded tungsten carbide ring

Customized tungsten carbide ring, thread outside, and mirror polishing inside

carbide ring and segments, sintered parts are completed

Carbide rings and carbide segments,
the sintered parts are completed as per the drawings. And next step is to do grinding and wire-cut.
The material grade is YG15 with 15% cobalt.

carbide inserts

Standard carbide inserts, very good quality.

T10MG R=100, 15x15x2MMx30Degree

T08MF, 14x14x2.5MMx30Degree

Solarsoncarbide in METALLOOBRABOTKA 2019

Our booth in METALLOOBRABOTKA 2019

Carbide stator modulator

Description: Stator Modulator
Application: telemetry system for directional drilling
Carbide grade: YN10 with 10% nickel as binder

 

Solarsoncarbide in 2019 Hannover Messe

Our booth is Hall 3 B32-18

Customers visited our booth

Carbide hammer

Description: Tungsten carbide hammer
Material grade:
Head--- YG15 with 15% Cobalt, 14g/cm3, ≥87.5HRA, ≥2600N/mm2, 1.2um
Handle---steel
Part weight: 780g
Application: broken polycrystalline silicon

Carbide hammer

Solid carbide tools for Petroleum Industry

Solid carbide tools with YN10, the binder is 10% Nickel.
It is for Petroleum Industry.
The grooves on the surface is made by EDM

Sintered carbide tools

Ground carbide tools

The grooves is EDM

HANNOVER MESSE 2019

Our booth No.: H3B32
April.01~05
HANNOVER MESSE 2019
Warmly welcome to visit us. Thank you.

Tungsten carbide composite rods

Material: YG8+Brass+Nickel+Zn

Quality control----drop testing

Each sintered carbide rods are dropped testing for good quality:

Quality Control----Hardness testing

Rockwell hardness testing on the carbide tools

 

 

The testing is made by Solarsoncarbide

How to choose suitable turning insert

Technical Data-----Insert selection

Sharon Gong from Solarsoncarbide

tungsten carbide nozzle

Tungsten carbide nozzle produced by Solarsoncarbide