FAQ

 

saw blade 

Q: 1.Why does the material exhibit roughness and burrs after cutting?

A: 1. The blade edge is not sharp enough, which may be due to worn tooth tips (dull saw teeth) or an inappropriate edge angle.
2. The feed speed is too fast, causing the material to be torn rather than cut cleanly.
3. The blade rotation speed is inappropriate-if the speed is too low, it can easily produce burrs

Q: 2. Why do saw blades wear out or chip easily during use?

A: There are four main causes of saw blade wear or chipping:
1. The hardness of the material exceeds the blade's working range (e.g., high-speed steel blades are unsuitable for cutting high-hardness alloys).
2. Insufficient cooling, causing the blade to overheat, leading to edge annealing or burning.
3. Uneven feed rate, resulting in sudden excessive force that causes chipping.
4. Improper clamping of the pipe during cutting, leading to movement and instability.

Q: 3. Why is there excessive noise and severe vibration when using the saw blade for cutting?

A: 1. Loose blade installation, causing eccentricity or runout.
2. Blade deformation or warping, leading to imbalance during operation.
3. Mismatch between spindle speed and blade specifications, intensifying resonance.

Q: 4. Why does the saw blade exhibit low cutting efficiency and difficulty in feeding?

A: 1. Dull teeth or improper blade edge angle
2. Insufficient cooling/lubrication, causing material adhesion to the blade
3. Abnormal material hardness exceeding the blade's cutting capacity
4. Mismatch between tooth count and pipe wall thickness

 

special shaped steel

Q: 1. What specific categories of special-shaped steel does your company offer?

A: Our special-shaped steel includes straight bars, precision strips, high-speed steel for cutting tools, blades for compressors/steering pumps, base materials for miniature linear guides, etc., covering the core positioning of "special steel, precision, and special-shaped", which can meet the demands of multiple fields such as automobiles, machinery, medical care, and automation.

Q: 2. What is the length range and tolerance control for the straight bars?

A: The length of the straight bars can be customized from 8mm to 4000mm, and special requirements can be negotiated. The length tolerance for precision cutting can reach ±0.05mm, and for sawing, it is +3/0mm. The straightness is ≤0.5mm/m, ensuring "zero allowance assembly" during downstream processing.

Q: 3. What are the options for the thickness and width of the precision strips?

A: The thickness of the strips ranges from 0.6mm to 5.0mm, and the width from 6mm to 30mm. Among them, high-precision strips (such as 0.6mm to 2.5mm) have a thickness tolerance of ±0.02mm, suitable for precision applications like electronic components and springs.

Q: 4. What materials do you recommend for cutting tools? What are the core advantages?

A: We recommend M2, M4, M35 (general cutting tools), M42 (high-speed cutting), and ASP2060 (high-end precision cutting tools): M2, M4, and M35 have a hardness of 61-66HRC and offer good cost performance; M42 contains 8% cobalt and has excellent red hardness (hardness retention rate ≥90% at 550°C); ASP2060 has three times the wear resistance of ordinary high-speed steel and is suitable for cutting super-hard materials.

Q: 5. How is the corrosion resistance of the special-shaped steel for sliding vanes ensured?

A: The sliding vanes are made of stainless steel materials such as 95Cr18 and X65Cr15, which pass a salt spray test for 500 hours without rust. Some models add molybdenum (≤0.75%), which can withstand corrosive media such as refrigerants and hydraulic oil, suitable for air conditioning compressors and automotive steering pumps.

Q: 6. What is the dimensional accuracy of the base materials for the tracks?

A: The thickness/width tolerance of the base materials for miniature linear guides is ±0.05mm, side bend ≤0.4mm/m, and horizontal bend ≤1.0mm/m; the tolerance of the groove depth is ≤0.05mm (for example, the groove depth of model N9 is 1.12mm), ensuring precise fit with the sliders and reducing operating noise.

Q: 7. Do all special-shaped steels support customized processing?

A: Yes, we support full customization of "material - size - process": for example, the edges of the straight bars can be customized with a radius R(+0.3, 0), the strips can be slit into flat blanks, and the base materials for the tracks can be pre-processed with holes.

Q: 8. What are the options for the heat treatment processes of the special-shaped steel?

A: We offer vacuum quenching, salt bath tempering, deep cryogenic treatment, etc., with controllable hardness from 21 to 65HRC: for instance, the cutting tool steel has a hardness of 62-65HRC after tempering at 540-560°C; the sliding vanes undergo heat treatment to balance toughness and wear resistance.

Q: 9. How can the authenticity of the material of the special-shaped steel be verified?

A: Each batch of products comes with a material certificate, including hardness test and metallographic inspection data; third-party re-inspection is supported, and we can provide traceability documents of raw material suppliers.

Q: 10. What are the main differences between the strips and the straight bars? What are the applicable scenarios?

A: The strips are in coil or sheet form, suitable for continuous processing, and can be formed into straight bars through stamping and slitting; the straight bars are fixed-length bars, suitable for single-piece processing (such as cutting tool blanks, mechanical parts), and both can share the same material and heat treatment processes.

Q: 11. Why is the base material for the tracks more suitable for precision equipment compared to ordinary steel?

A: The base material for the tracks is made of custom stainless steel such as 95Cr18 and X65Cr15, which undergoes multiple cold rolling and straightening processes, resulting in a more uniform internal structure; combined with high-precision groove shapes, the running accuracy can reach 0.01mm/m, far exceeding that of ordinary steel.

Q: 12. What is the minimum order quantity for the special-shaped steel? Do you support samples?

A: The minimum order quantity for regular products is 1 ton. For custom-shaped parts (such as special channel-shaped tracks), it can be negotiated. Free samples are provided (with freight to be paid by the recipient). The samples are produced using the same process as the bulk products to ensure consistency.

Q: 13. How long is the delivery cycle? Can urgent orders be expedited?

A: For custom products, it takes 30 to 40 days. Urgent orders can be expedited. We will prioritize production and coordinate air freight to meet the customer's time requirements.

Q: 14. How does the red hardness of the material used for the cutting tools affect the cutting efficiency?

A: Red hardness directly determines the cutting speed. M42 steel maintains a hardness of ≥60HRC at 550℃, allowing for high-speed cutting at 300 meters per minute. This is 40% more efficient than ordinary carbon steel cutting tools and has a lifespan 2 to 3 times longer.

Q: 15. What is the packaging method for the special-shaped steel? Is it suitable for long-distance sea transportation?

A: We use waterproof wrapping film and wooden crates for packaging. This packaging can withstand the rough conditions and humidity of long-distance sea transportation, ensuring that the goods arrive without rust or deformation.

Q: 16. Can the base material of the tracks be adapted to different brands of sliders?

A: Yes. Besides the standard HIWIN structure, we can develop structures for THK, IKO, and Rexroth, etc. The parameters such as slot width, slot depth, and center distance are fully compatible.

Q: 17. Which international standards do all the special-shaped steels comply with?

A: They comply with standards such as GB/T1220-2007, ASTM A681, and DIN 17350, and have passed ISO9001 certification. For products exported to Europe and America, they also meet RoHS and REACH environmental protection requirements, and we can provide compliance reports.

 

steel plate

Q: 1. What are the main materials of the steel plates supplied by your company?

A: We supply a wide range of high-quality special steel plates, with core materials including high-speed steel (M2, M35, M42), powder steel (ASP2030, ASP2060), die steel (Cr12MoV), etc., which can meet the needs of different scenarios such as cutting tools, molds, and wear-resistant parts.

Q: 2. What are the thickness and width ranges of the steel plate?

A: The thickness covers 0.6-10mm (0.6-3.0mm is cold-rolled, and above 3.0mm is hot-rolled), with a width of ≥500mm. Fixed-length cutting is supported, and the tolerance is strictly controlled.

Q: 3. How to ensure the dimensional accuracy of steel plates?

A: We use precision rolling mills and thickness gauges for real-time monitoring, combined with years of technological accumulation, to ensure that the thickness, width tolerance and straightness comply with the GB/T9941-2009 standard, and the key parameters are superior to the industry average.

Q: 4. Can customized heat treatment services be provided?

A: Yes, we are equipped with salt bath furnaces, vacuum furnaces, atmosphere furnaces and ultra-deep cryogenic equipment, and can provide customized heat treatment such as quenching, tempering and deep cryogenic treatment to meet different hardness and performance requirements.

Q: 5. What are the surface treatment options for steel plates?

A: We routinely offer surface conditions such as cold-rolled bright and hot-rolled black skin. Sanding treatment can be carried out as required.

Q: 6. How to confirm the authenticity of the steel plate material?

A: Each batch of products is accompanied by a material certificate, which includes test data such as chemical composition and hardness. It supports third-party re-inspection and can provide traceability information of raw material suppliers.

Q: 7. What is the minimum order quantity?

A: The minimum order quantity for regular materials is 1 ton. Special materials or customized specifications can be negotiated. Samples can be provided and the freight is collected on delivery.

Q: 8. What is the production and delivery cycle?

A: Customized products (such as special heat treatment and fixed-length cutting) take 30 to 35 days. Urgent orders can be expedited for production.

Q: 9. Which international standards are supported?

A: The product complies with international standards such as GB/T9941-2009, ASTM, AISI, DIN, and JIS, and has passed ISO9001 certification. It can meet the import requirements of Europe, America, Southeast Asia and other regions.

Q: 10. What are the differences between M2 and M42 high-speed steel plates?

A: M2 is suitable for general-purpose cutting tools (with hardness ranging from 61 to 63HRC) and offers high cost performance. M42 contains cobalt (7.75-8.75%), has better red hardness (hardness retention rate ≥90% at 550℃ high temperature), and is suitable for high-speed cutting and wear-resistant scenarios. Its service life is 2-3 times longer than that of M2.

Q: 11. How can the wear resistance of steel plates be guaranteed?

A: By optimizing the alloy composition (such as increasing the content of vanadium and molybdenum), conducting precise heat treatment (such as vacuum quenching), and applying grain refinement processes, the wear resistance of the steel plate can reach 3 to 5 times that of ordinary steel. Specific wear test reports can be provided.

Q: 12. Could you provide some usage suggestions??

A: We can recommend the best materials and processes based on your application scenarios (such as cutting tools and molds). For example: Cr12MoV is recommended for cold working dies, M42 for high-speed cutting tools, and ASP2060 for aerospace parts.

Q: 13. What are the transportation methods?

A: We support sea transportation. Domestic ports can ship from Ningbo and Shanghai.

Q: 14. How to handle quality objections?

A: We promise a 30-day quality objection period. If there are quality issues with the product itself (such as substandard ingredients or size deviations), we can offer free returns or exchanges and cover the round-trip shipping costs. We will also provide technical support throughout the process.

Q: 15. How is the welding performance of steel plates?

A: It is recommended to use argon arc welding for high-speed steel. We can provide specific welding parameter guidance.

Q: 16. Can processing services be provided?

A: Supports fixed-length cutting (tolerance range 1mm), forming processing and deburring treatment, reducing subsequent processes for customers and lowering costs.

Q: 17. What advantages does powder steel ASP2030 have over ordinary high-speed steel?

A: ASP2030 is made through powder metallurgy process, with less impurities (P and S≤0.03%), finer grains (≤5μm), and its toughness and wear resistance are over 50% higher than those of ordinary high-speed steel, making it suitable for high-end precision cutting tools.

Q: 18. Does the product meet environmental protection requirements?

A: Yes, all steel plates have passed RoHS and REACH certifications. The production process adopts a water circulation system and waste recycling technology, meeting the environmental protection standards of the European Union and North America.

Q: 19. How to become a long-term partner?

A: Long-term customers can enjoy exclusive discounts, priority production scheduling, free technical training and other benefits. They can also sign annual agreements to ensure stable prices and continuous supply.

Q: 20. Where can I view more technical materials?

A: In the "More Information" section, you can download material manuals, heat treatment process guidelines, test report templates, etc. You can also contact customer service to obtain customized technical solutions.