Zhuzhou Jinzhou Cemented Carbide Co., Ltd

Serving Oil & Gas, Mining & Construction Industries

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FAQ

FAQ

1. Tungsten Carbide Rods FAQ

Q1: What are the common grades of tungsten carbide rods and their applicable scenarios?
A: Our mainstream grades include YG8, YG6, YG10X, and ultrafine grain WC-Co grades. YG6 features high hardness and excellent wear resistance, suitable for finishing, drilling and milling tool blanks. YG8 has better toughness and impact resistance, ideal for roughing, interrupted cutting, drill bits and milling cutters. Ultrafine grain grades deliver high precision and smooth surface finish, applicable for precision micro tools, medical tools and high-end precision processing. All rods are made of high-purity tungsten powder with uniform density and stable performance.
Q2: Can you customize the size and tolerance of carbide rods? What is the maximum precision?
A: Full-size customization is available. The conventional diameter ranges from 1.0mm to 50mm and length from 30mm to 330mm, with non-standard special sizes customizable. The tolerance of standard products is controlled within ±0.01mm, and precision ground and polished rods can reach ±0.005mm tolerance with qualified straightness and roundness, meeting the high-precision assembly requirements of precision tools, mold accessories and mechanical shaft parts.
Q3: What surface treatments are available for carbide rods? Is polishing service supported?
A: We provide three conventional surface states: blank, precision ground and mirror polished. Blank rods are suitable for secondary processing and polishing. Precision ground rods feature smooth surface and accurate size, which can be directly used for tool manufacturing. Mirror polished rods have no scratches and ultra-low roughness, perfect for precision instruments and high-end mold accessories. Customized surface processing is available on request.
Q4: What are the service life advantages of carbide rods over ordinary steel rods?
A: Tungsten carbide rods have far higher hardness than high-speed steel and mold steel, with excellent high-temperature resistance, wear resistance and deformation resistance. In metal cutting, drilling and grinding processes, their service life is 5-10 times that of ordinary steel tools. They will not soften or edge chipping under high-temperature working conditions, effectively reducing replacement frequency and production costs.

2. Tungsten Carbide Strips FAQ

Q1: What industries and processes are carbide strips mainly used for?
A: As universal carbide base materials, tungsten carbide strips are widely used in woodworking tools, metal cutting tools, wear-resistant liners, mechanical scrapers, slicing tools and stone processing tools. They can be further processed into various blades and wear-resistant parts for woodworking, hardware processing, mechanical manufacturing and stone processing industries.
Q2: How to balance the toughness and wear resistance of carbide strips? Are they for roughing or finishing?
A: We can adjust the cobalt content according to customers' working conditions. High-cobalt grades have good toughness and impact resistance, suitable for roughing, interrupted cutting and heavy-duty scraping. Low-cobalt grades feature high hardness and superior wear resistance, ideal for finishing, continuous cutting and wear protection scenarios, fully adapting to different processing intensities.
Q3: Can carbide strips be processed by cutting, chamfering and drilling?
A: A full range of secondary precision processing services are supported, including fixed-length cutting, edge chamfering, surface precision grinding, drilling, grooving and special-shaped cutting. Products can be delivered as finished products for direct use without secondary grinding, saving customers' processing time and cost.

3. Tungsten Carbide Plates FAQ

Q1: What are the core advantages of carbide plates compared with ordinary steel plates?
A: Tungsten carbide plates have ultra-high hardness, outstanding wear resistance, corrosion resistance, high-temperature resistance and deformation resistance, with extremely high compressive strength. They are not easy to wear, deform or rust under long-term heavy load, friction and high-temperature conditions. They are widely used for high-precision wear-resistant base plates, mold base plates, sealing plates and equipment wear-resistant guard plates, with a much longer service life than ordinary steel plates.
Q2: What are the conventional thickness ranges and customizable specifications of carbide plates?
A: The conventional thickness ranges from 0.5mm to 50mm, with customizable length and width. Ultra-thin sheets and ultra-thick heavy-duty plates are available. Adopting integral sintering technology, the plates have uniform internal structure, no pores or sand holes and high flatness, meeting the requirements of precision assembly and heavy-duty wear-resistant applications.
Q3: Are carbide plates acid and alkali resistant for special working conditions?
A: High-quality tungsten carbide plates feature excellent chemical stability, with strong resistance to acid, alkali, oxidation and rust. They can work stably for a long time in harsh environments such as humidity, acid-base corrosion, dust and high temperature, suitable for chemical equipment, mining machinery and precision equipment protection scenarios.

4. Tungsten Carbide Balls FAQ

Q1: What precision grades do carbide balls have and what are their applications?
A: We provide high-precision carbide balls of G3, G5, G10 and G16 grades with accurate roundness and mirror surface finish. High-precision balls are applied to precision bearings, valve cores, instrument parts and detection jigs. Standard-precision balls are suitable for sandblasting, polishing, grinding and mining vibration equipment parts.
Q2: Can the hardness and wear resistance of carbide balls meet high-frequency use requirements?
A: The hardness of tungsten carbide balls reaches above HRA89, with excellent wear resistance, impact resistance and extrusion resistance. They are not easy to wear, deform or crack under high-frequency reciprocating motion, high-pressure extrusion and high-speed friction, with a service life dozens of times longer than stainless steel balls and steel balls.
Q3: Are non-standard size carbide balls customizable? What is the size range?
A: Full-size customization is supported. The standard size ranges from 0.5mm to 100mm, and customized micro balls and extra-large balls are available. We also provide customized processing of holed, grooved and special-shaped spherical surfaces to meet the needs of various non-standard equipment parts.

5. Tungsten Carbide Welding Composite Rods FAQ

Q1: What welding and repair scenarios are carbide welding rods mainly used for?
A: They are mainly used for surfacing and repairing wear-resistant layers of mining machinery, construction machinery, agricultural machinery parts, molds and tools. They can reinforce worn and damaged mechanical parts, improve the surface wear resistance and impact resistance of workpieces, and are widely used in the repair of drill bits, crusher parts, shovel teeth and mold cavities.
Q2: Is it difficult to weld with carbide composite rods? Will the welded layer fall off easily?
A: Adopting composite molding technology, the welding core and cladding layer are tightly combined, compatible with conventional arc welding and gas welding with simple operation. After welding, the carbide layer is firmly bonded with the base material with strong adhesion, not easy to fall off or crack. The uniform wear-resistant layer greatly prolongs the service life of repaired workpieces.
Q3: How to select the appropriate carbide welding rod model for different working conditions?
A: General-purpose rods are suitable for minor wear and conventional repair. High-toughness and high-alloy rods are designed for heavy impact and severe wear conditions. High-temperature and corrosion-resistant special rods are applicable for high-temperature and corrosive environments. We can recommend the most suitable model according to customers' specific equipment working conditions.

6. Tungsten Carbide CNC Inserts FAQ

Q1: What materials can CNC carbide inserts process?
A: General inserts can process conventional metals such as stainless steel, carbon steel, cast iron, aluminum alloy and copper alloy. Coated special inserts are suitable for difficult-to-process materials including high-strength steel, mold steel and heat-resistant alloy. They are compatible with lathes, milling machines and machining centers, covering roughing, semi-finishing and finishing processes.
Q2: What are the differences between CNC insert coatings and how to choose?
A: Common coatings include TiN, TiCN and AlTiN. TiN coating features high temperature resistance and strong universality for conventional metal processing. TiCN coating has high hardness and wear resistance, suitable for finishing. AlTiN coating excels in high-temperature oxidation resistance, ideal for high-speed cutting and hard material processing. The coating can be selected according to processing materials and cutting speed.
Q3: Are CNC inserts with stable precision and consistent batch quality?
A: All CNC inserts are manufactured by precision pressing, sintering and grinding processes with unified dimensional accuracy. The tool nose arc, angle and tolerance are highly consistent in batch production without deviation. They adapt to continuous processing of automated CNC equipment with high yield, stably meeting mass production requirements.

7. Tungsten Carbide Molds and Dies FAQ

Q1: What are the advantages of carbide molds over steel molds?
A: Tungsten carbide molds have ultra-high hardness, excellent wear resistance and minimal deformation with high temperature and extrusion resistance. They are not easy to wear, collapse or deform during stamping, stretching and molding processes. The service life is more than 20 times that of ordinary steel molds, greatly reducing mold replacement costs and equipment downtime losses.
Q2: What types of carbide molds can be customized?
A: We support customization of various standard and non-standard carbide molds, including stamping molds, drawing molds, cold heading molds, forming molds, wire drawing molds, punching molds and trimming molds, applicable to hardware stamping, wire processing, fastener production and precision molding industries.
Q3: What precision and surface finish can carbide molds achieve?
A: Manufactured by precision sintering and five-axis grinding technology, the dimensional tolerance of carbide molds can be controlled within ±0.005mm. The mold cavity adopts mirror polishing treatment with ultra-low roughness, producing workpieces with high finish and no burrs to meet the precision molding requirements of high-precision parts.

8. Tungsten Carbide Brazed Tips FAQ

Q1: What tools and equipment are brazed tips suitable for?
A: Carbide brazed tips are widely used for welded turning tools, planing tools, milling cutters, drill bits, woodworking tools, stone cutting tools and engineering machinery wear-resistant cutter heads. They can be brazed on tool bodies for metal cutting, stone cutting, wood processing and equipment scraping applications.
Q2: Are brazed tips prone to edge chipping and cracking after welding?
A: Made of high-quality tungsten steel raw materials with uniform grain and moderate toughness, the tips have no internal stress after delivery. With standard welding processes, they are not easy to crack, chip or delaminate after welding. Featuring excellent impact resistance and wear resistance, they adapt to continuous processing and heavy-duty working conditions.
Q3: Can special-shaped brazed tips be customized?
A: We support customization of various special-shaped and non-standard size brazed tips. We can customize cutter heads with different angles, shapes and thicknesses according to customers' tool body drawings and working conditions. Pre-processing services such as chamfering, edge grinding and polishing are provided for direct welding and use.

9. Tungsten Carbide Buttons FAQ

Q1: What equipment are carbide buttons mainly used for?
A: As core accessories for mining and engineering drilling, tungsten carbide buttons are mainly applied to drill bits, down-the-hole drills, rotary drilling rigs, rock drills, shearers and tunneling machines, suitable for mining rock drilling, tunnel tunneling, geological drilling and subgrade construction scenarios.
Q2: Can carbide buttons adapt to heavy-duty mining working conditions with impact and wear resistance?
A: Our carbide buttons are made of high-toughness ultrafine grain carbide materials, balancing ultra-high hardness and impact resistance. They resist strong impact and gravel wear, and are not easy to break, fall off or wear excessively during drilling, adapting to complex working conditions such as hard rock, ore and soil-rock mixture.
Q3: What are the standard specifications of carbide buttons? Is customization available?
A: Standard styles include spherical, conical and flat-top shapes with complete diameter and height specifications for most standard drill bits. Non-standard special-shaped and customized size buttons are available, and we can design exclusive products according to customers' drilling equipment and rock stratum conditions.

10. Tungsten Carbide Saw Tips FAQ

Q1: What materials can carbide saw tips cut?
A: Carbide saw tips are suitable for cutting wood, wood-based panels, aluminum alloy, copper alloy, plastics, pipes and profiles. They are core wear-resistant cutting accessories for woodworking saw blades, metal cutting saw blades and stone saw blades, featuring sharp cutting performance and anti-chipping ability.
Q2: What are the advantages of carbide saw tips over ordinary steel saw tips?
A: Carbide saw tips have high hardness and excellent wear resistance with lasting cutting sharpness. They are not easy to wear, blunt or edge break during long-term high-speed cutting. Their service life is dozens of times that of ordinary steel tips, eliminating frequent polishing and replacement and greatly improving cutting efficiency.
Q3: Can carbide saw tips adapt to different saw blade models? Is tooth shape customization supported?
A: Our saw tips are compatible with most standard saw blades on the market. Custom tooth shapes including flat teeth, oblique teeth, trapezoidal teeth and special-shaped teeth are available. We can customize exclusive saw tips according to saw blade size, cutting materials and cutting speed for non-standard saw blade renovation and production.

11. General Cooperation FAQ (Customization, Pricing, Delivery, After-sales, Qualification)

Q1: Do you support OEM/ODM customization and drawing-based production?
A: We support full-range OEM and ODM non-standard customization. Customers can provide drawings, samples, dimensional parameters or working condition requirements. We provide free solution design and sample confirmation, and strictly control precision and quality during mass production to meet personalized procurement needs.
Q2: Are your products cost-effective? Is there a discount for bulk purchase?
A: We are a direct manufacturer with no intermediate distributors, providing factory direct prices. Retail purchases follow market prices, and bulk and long-term cooperative customers can enjoy tiered discounts. Exclusive pricing and credit period services are available for regular partners.
Q3: Are free samples available? What is the sample delivery time?
A: Free samples are provided for standard products, with customers only bearing the freight. A small sampling fee will be charged for non-standard customized samples, which will be fully refunded after bulk order placement. Standard samples are delivered within 24 hours, and customized samples are completed within 3-5 working days.
Q4: What is the product warranty period? How to handle quality problems?
A: All products undergo strict factory inspection and comply with standard warranty regulations. For non-human quality problems such as dimensional deviation, cracking, material inconsistency and defects after receipt of goods, we provide free return, exchange, replacement and remaking services, bearing all logistics and production costs to solve customer problems efficiently.
Q5: What are the delivery methods and lead times? Do you support export business?
A: Standard in-stock products are delivered immediately with domestic arrival in 3-7 days. Customized products take 7-15 working days for delivery. We support global export business, providing FOB, CIF and other international trade services with complete customs declaration documents and quality inspection reports for overseas customers.
Q6: Do you provide quality inspection reports and qualification certificates?
A: All products are delivered with material inspection reports and dimensional quality inspection reports. Our company has complete production qualifications and ISO quality system certification, providing all compliant certificate documents to meet the needs of domestic procurement, export trade and bidding projects.
Q7: What supporting processing services can you provide?
A: We provide one-stop deep processing services including cutting, precision grinding, polishing, chamfering, drilling, grooving, coating, welding pre-treatment and special-shaped processing. We can deliver blanks, semi-finished products and finished products for direct use without customers' secondary processing.

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