Are you looking for the best silicon carbide machining factories in China? With the country dominating the global SiC market, it’s crucial to know which manufacturers stand out. Let’s dive into a comparison of China’s top silicon carbide machining factories, highlighting their strengths, production capacities, and innovative approaches that set them apart.

China Silicon Carbide Machining | Huayi

Silicon Carbide Cutting Solutions

Product Details: The FA3-AT1T8X is a network device from Mitsubishi Electric Engineering. It is compatible with MELSEC iQ-R, iQ-F, Q, and L series modules. It supports CC-Link IE TSN, CC-Link IE Field, CC-Link IE Field Basic, and SLMP (Ethernet) networks. The device has 8 analog input points, a digital output range of 0 to 16000, and operates within an ambient temperature range of 0 to 55 °C. It also has specific vibration resistance and humidity tolerance specifications.

Pros:
– Supports multiple network protocols including CC-Link IE TSN and SLMP
– Compatible with various MELSEC series modules
– High accuracy with +/-0.3% for maximum digital output value at ambient temperatu…
– Robust environmental tolerance including vibration resistance and wide humidity…

Cons:
– Requires specific installation base and cables sold separately
– Limited to star topology
– Weight and dimensions may require careful mounting considerations

China Silicon Carbide Suppliers, Manufacturers, Factory

Product Details: HONGFENG produces black silicon carbide and green silicon carbide for abrasive, refractory, and metallurgy applications. Silicon carbide (SiC), also known as carborundum, is a hard chemical compound containing silicon and carbon. It is used as an abrasive and can be bonded together by sintering to form very hard ceramics. SiC is utilized in applications requiring high endurance, such as car brakes, car clutches, and ceramic plates in bulletproof vests. It is also used in semiconductor electronics devices that operate at high temperatures or high voltages.

Pros:
– Higher temperature capability: SiC can operate at much higher temperatures than…
– Higher breakdown voltage: SiC has a breakdown voltage roughly eight times greate…
– Smaller form factor: The higher breakdown voltage and thermal conductivity of Si…
– Higher switching frequencies: The smaller form factor of SiC transistors enables…

Cons:
– High production cost: The production of silicon carbide, especially high-quality…
– Complex manufacturing process: The Lely method for growing large single crystals…
– Limited natural occurrence: Silicon carbide occurs naturally as the extremely ra…

Green Silicon Carbide Manufacturer and Supplier in China …

Product Details: Green Silicon Carbide is produced by heating silica sand and a carbon source, typically petroleum coke, to high temperatures in a large, open ‘Acheson’ furnace. The result is the crystalline formation of Silicon Carbide grains, with green SiC being of higher purity due to its closer proximity to the heat source. It is used in various applications such as industrial ceramics, surface treatment, and abrasive tools. Green Silicon Carbide is known for its high hardness, chemical inertness, high thermal conductivity, abrasion resistance, and thermal shock resistance.

Pros:
– High hardness and abrasion resistance
– Chemical inertness
– High thermal conductivity
– Thermal shock resistance
– Strength at high temperature ranges
– Suitable for grinding hard alloys and cool cutting applications

Cons:
– Higher cost compared to other materials
– More friable crystal structure compared to Black Silicon Carbide
– Limited outdoor use in applications like anti-slip flooring due to cost

High Precision Machining Silicon Carbide Ceramic Bushing

Product Details: Silicon Carbide (SiC) ceramic bushings are made from one of the lightest, hardest, and strongest technical ceramic materials. They are refined through reaction sintering and non-pressure sintering processes. These bushings have a density of approximately 3.1 g/cm³, high hardness (around 28 GPa), and excellent flexural strength (around 410 MPa at 25°C). They also exhibit high thermal conductivity (around 102.6 W/mK), low thermal expansion coefficient (4.02 × 10^-6/K), and excellent thermal shock resistance[2][3][5].

Pros:
– High hardness and wear resistance, making them extremely resistant to scratches…
– Excellent corrosion resistance to acids, alkalis, and reactive gases.
– High thermal conductivity and low thermal expansion, providing excellent thermal…
– Lightweight with low density.
– Suitable for high-temperature applications up to 1900°C in inert environments.
– Excellent for applications requiring high mechanical strength and stability.

Cons:
– Machining SiC ceramic bushings can be time-consuming and costly due to the mater…
– The sintering process causes the material to shrink approximately 20%, making it…
– The high hardness and strength of SiC can make it difficult to achieve complex g…

China Top Grade Custom Ceramic CNC …

China Silicon Carbide Industry Report, 2019-2025

Product Details: The report focuses on the Global and China Viscose Fiber Industry. In 2018, the global output of viscose fiber reached approximately 5.8 million tons, with China contributing around 65%. The total capacity of viscose fiber in China was expected to reach 5,100 kilotons by 2019, with an additional capacity of roughly 350 kilotons. The market is influenced by technical advances, environmental campaigns, and market demand for rayon yarn.

Pros:
– Increasing effective production capacity due to technical advances.
– Growing demand for high-end viscose fiber products.
– Expansion of production capacity in China.

Cons:
– Stringent environmental campaigns affecting production.
– Depressed market demand for rayon yarn leading to lower prices.
– Loss-making for the majority of viscose firms due to market conditions.

China Carbide Machining

Product Details: The carbide machining service offered by Shenzhen Hongsinn Precision Co., Ltd. involves precision machining processes for silicon carbide and other carbide materials. Key details include a Minimum Order Quantity (MOQ) of 1 piece, with prices ranging from USD 0.77 to USD 8.76 per piece. The process utilizes advanced equipment such as wire cutting machines to produce components with high precision and accuracy.

Pros:
– High precision and accuracy in machining carbide materials
– Advanced equipment such as wire cutting machines for precise components
– Flexible pricing with a range from USD 0.77 to USD 8.76 per piece
– Low MOQ of 1 piece, accommodating small and large orders

Cons:
– Limited information on the specific types of carbide materials other than silico…
– No detailed information on lead times or delivery schedules
– Prices may vary widely depending on the complexity and size of the components

[News] Nanjing, China Achieved Breakthrough in …

Product Details: Nanjing, China has successfully developed a key technology for the manufacturing of trench-type silicon carbide (SiC) MOSFET chips after four years of independent study. This breakthrough, achieved by the National Third-Generation Semiconductor Technology Innovation Center (Nanjing), overcomes the performance constraints of the planar SiC MOSFET chip, marking the first accomplishment of its nature in China.

Pros:
– Superior efficiency compared to traditional silicon chips
– Reduced energy dissipation
– Ability to operate at elevated temperatures
– Essential for advancements in electric vehicles, artificial intelligence data ce…

Cons:
– High development and production costs
– Complex manufacturing process
– Limited existing infrastructure for large-scale production

Silicon Carbide Boron Nitride Ceramic Parts Machining

Product Details: Silicon carbide (SiC) is a chemical compound of carbon and silicon, known for its exceptional hardness and strength. It is produced through a high-temperature electro-chemical reaction of sand and carbon. SiC is widely used in abrasives, refractories, ceramics, and high-performance applications. It has high thermal conductivity, low thermal expansion, and is resistant to chemical attack up to 800°C. SiC can be used as an electrical conductor and is applied in resistance heating, flame igniters, and electronic components.

Pros:
– Exceptional hardness and strength
– High thermal conductivity and low thermal expansion
– Resistant to chemical attack up to 800°C
– Can be used as an electrical conductor
– Excellent thermal shock resistance
– Maintains strength at very high temperatures

Cons:
– High production costs
– Complex processing requirements
– Limited availability of high-purity material
– Can be challenging to machine and fabricate

Comparison Table

Frequently Asked Questions (FAQs)

What is silicon carbide and why is it important in machining?

Silicon carbide (SiC) is a ceramic material known for its exceptional hardness, thermal conductivity, and resistance to corrosion. It is widely used in various industries, including automotive, aerospace, and renewable energy, due to its durability and performance under high temperatures and harsh conditions. In machining, SiC is valued for its ability to produce high-quality, precision components that meet stringent requirements.

How is silicon carbide manufactured in Chinese factories?

In Chinese factories, silicon carbide is typically manufactured by combining silica sand and carbon (such as anthracite coal or petroleum coke) in an electric resistance furnace at high temperatures between 1,600°C and 2,500°C. This process can also utilize silica fume from silicon metal and ferrosilicon production, heated with graphite to produce SiC. The resulting material is then processed into various forms, including powders and granules.

What are the key applications of silicon carbide products in China?

Silicon carbide products in China are used in a variety of applications. They serve as abrasives and refractories in the metallurgy industry, and as deoxidizers in foundry processes. Additionally, SiC is crucial in the production of semiconductors, particularly for electric vehicles and solar panels, due to its excellent electrical and thermal properties. It is also used in special ceramics, electric heating elements, and advanced technologies like 5G communication chips.

How do Chinese silicon carbide factories ensure quality and reliability?

Chinese silicon carbide factories emphasize quality and reliability through advanced manufacturing processes and rigorous testing. Companies like Shandong Huayi Tech New Materials Co., Ltd. use cutting-edge technology and precise manufacturing techniques to ensure high-quality products. These factories also focus on efficient production and exceptional customer support, with skilled technicians and engineers ensuring that every product meets high standards of excellence.

What impact has the recent increase in Chinese silicon carbide production had on global markets?

The recent ramp-up in silicon carbide production by Chinese manufacturers has significantly impacted global markets. Prices for mainstream SiC substrates have plummeted due to increased supply, affecting the competitiveness of other global suppliers. Despite this, the demand for SiC, especially in sectors like electric vehicles and solar panels, continues to grow, driven by technological advances and favorable policies. This shift is expected to expand the range of SiC applications beyond current markets.