Can FOTMA manufacture tungsten carbide parts from my drawing or sample?

Yes. FOTMA produces custom carbide components from 2D/3D drawings or physical samples. Our engineers review geometry, tolerances, grade and surface finish, then route the part through pressing, sintering, CNC machining, grinding, EDM and polishing as required.

How do I choose the right cemented carbide grade?

Grade selection balances hardness against toughness. Lower cobalt binder content (around 6%) gives higher hardness and wear resistance for abrasive applications, while higher cobalt content (around 10 to 15% or more) improves toughness for impact loads such as shredder blades and mining tools. Share your operating conditions and we will recommend a grade.

Which quality standard does FOTMA follow?

All production procedures, including sintering, CNC machining, grinding, EDM and polishing, are operated under an ISO 9001:2015 quality management system. Dimensional inspection records and material documentation are available on request.

What information should I provide for a technical review?

Please send drawings (PDF, DWG, STEP or IGES), material or grade requirements, tolerances, surface finish, annual volume and the application environment. This allows our engineers to confirm manufacturability and propose the most cost-effective process route.

Does FOTMA supply materials other than tungsten carbide?

Yes. In addition to cemented carbide, FOTMA supplies tungsten alloys, tungsten-copper and molybdenum-copper electronic packaging materials, molybdenum products, nickel and nickel alloys such as Inconel 625 and 718, heating elements, ceramic products and CNC machined parts.

China Zirconia Ceramic Products supplier, Suppliers

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China Zirconia Ceramic Products supplier, Suppliers

Zirconia ceramics, ZrO2 ceramics, Zirconia Ceramic have excellent properties such as high melting point and boiling point, high hardness, insulator at room temperature, and electrical conductivity at high temperature.

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Product Description

Zirconia ceramics, ZrO2 ceramics, Zirconia Ceramic have excellent properties such as high melting point and boiling point, high hardness, insulator at room temperature, and electrical conductivity at high temperature. Zirconia ceramics are widely used in the field of structural ceramics because of their high toughness, high flexural strength and high wear resistance, excellent thermal insulation properties, and thermal expansion coefficient close to steel. Mainly include: Y-TZP grinding balls, dispersing and grinding media, nozzles, ball valve seats, zirconia molds, miniature fan shafts, fiber optic pins, fiber optic sleeves, drawing dies and cutting tools, wear-resistant knives, clothing buttons, Cases and straps, bracelets and pendants, ball bearings, light bats for golf balls, and other room temperature wear-resistant parts.

Zirconia Ceramics Structural Applications

High density - up to 6.1 g/cm^3

High flexural strength and hardness

Excellent fracture toughness - impact resistance

High maximum operating temperature

Wear-resistant

Good friction properties

Electrical insulator

Low thermal conductivity - approx. 10% alumina

Acid and alkali corrosion resistance

Similar to the modulus of elasticity of steel

Similar coefficient of thermal expansion to iron

Zirconia Ceramics Functional Applications

In terms of functional ceramics, its excellent high temperature resistance is used as induction heating tubes, refractory materials, and heating elements. Zirconia ceramics have sensitive electrical performance parameters and are mainly used in oxygen sensors, solid oxide fuel cells (SOFC) and high temperature heating elements. ZrO2 has a high refractive index (N-21^22), adding certain coloring elements (V2O5, MoO3, Fe2O3, etc.) to the ultra-fine zirconia powder, it can be made into colorful translucent polycrystalline ZrO2 materials, shining like a natural gemstone with brilliant and colorful light, it can be made into a variety of decorations. In addition, zirconia is being widely used in thermal barrier coatings, catalyst carriers, medical care, health care, refractories, textiles and other fields.

Frequently Asked Questions

Q1: What are the main advantages of zirconia ceramics?
A1: Zirconia ceramics offer high density, exceptional hardness, fracture toughness, and excellent resistance to wear and thermal conditions.

Q2: Why is zirconia used in structural ceramics?
A2: Its high flexural strength and thermal expansion coefficient, which is similar to steel, make it ideal for structural and wear-resistant applications.

Q3: Can zirconia ceramics be used for high-temperature applications?
A3: Yes, they exhibit high melting points and are used as heating elements, refractory materials, and in induction heating tubes.

Q4: Is zirconia an electrical conductor?
A4: It acts as an electrical insulator at room temperature but demonstrates electrical conductivity at high temperatures.

Q5: Are zirconia ceramics used in decorative fields?
A5: Yes, when combined with coloring elements, it can form translucent, gemstone-like materials used in jewelry and ornaments.

Q6: How does zirconia perform in chemical environments?
A6: Zirconia ceramics demonstrate excellent resistance to both acid and alkali corrosion.

China Zirconia Ceramic Products supplier, Suppliers

Product Description

Frequently Asked Questions

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