Explanation of Core Technology of BLH Bearings
The quality of bearing products is mainly reflected in precision, lifespan, adaptability, and other aspects. The stable and efficient production of high-precision, long-life, and high reliability bearing products requires long-term accumulation of professional disciplines such as materials science, mechanics, and tribology, as well as solid support from interdisciplinary theories and technologies such as material processing and heat treatment technology, high-precision machining technology, and automated production technology.
After years of research and development, the company has formed a complete core technology system, mainly including bearing material research and development technology, bearing simulation analysis and design technology, bearing simulation bench testing technology, bearing precision manufacturing technology, etc. The above-mentioned core technologies cover a wide range of technical links in the entire industry chain, including bearing materials, product design, bench testing, and production processes. Together, they determine the final quality of bearing products, especially the core performance indicators of mid to high end products.
The core technology of the company's main products, its source, application and progressiveness are as follows:
1. Core Technology: Research and Development of Bearing Materials - Bearing Steel
Technical source: independent research and development; Collaborative development.
Application: Used in the production and manufacturing of bearing steel.
Progressiveness of technology: In the field of bearing steel, the company has developed a series of special bearing steel varieties such as high carbon chromium bearing steel, carburized steel and medium carbon steel through cooperation with leading bearing steel enterprises in China, which can meet the needs of high-end customers and special applications for materials, and has obtained corresponding invention patents. Different steel grades are suitable for different application conditions or downstream fields, greatly improving the performance of bearings. At the same time, with the accumulation in the field of bearing steel technology, the company participated in the formulation of the bearing industry standard "High Quality and High Quality Vacuum Refined GCr15 Round Steel for Rolling Bearings" (SAC/TC98.91-2006).
2. Core Technology: Research and Development of Bearing Materials - Manufacturing of Rubber Materials for Bearing Seals.
Technical source: independent research and development; Collaborative development.
Application: Manufacturing of rubber materials for bearing seals.
Progressiveness technology: In the field of bearing seals, the company has a professional R&D team of bearing seals rubber materials, and has mastered the development technology of various high-performance rubber materials, and can skillfully develop various high-performance rubber materials according to user requirements.
The company has independently developed more than 400 high-performance rubber material formulas, involving rubber materials such as nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), acrylic rubber (ACM), etc. Among them, super nitrile rubber and high water resistance acrylic rubber have achieved first-class performance.
3. Core Technology: Bearing Simulation Analysis and Design Technology
Technical source: independently developed
scenario: Applied to the simulation design of various bearing products, by calculating and analyzing the impact of bearing size and error on bearing stability, as well as the interaction between various parts, the state of bearings during operation can be realistically simulated, enabling the design of products with more applicability and dynamic performance.
Progressiveness of technology: The company abandoned the traditional bearing design idea of single fatigue life. Through the combination of design theory and computer technology, it created a dynamic model that can simulate the dynamic performance of rolling bearings, and can systematically analyze and design the mechanical, kinematic and dynamic performance of bearings and components.
The dynamic design technology has broken through the traditional design concepts of individual components, statics, and locality, solving a series of technical problems such as abnormal noise in the cage, convexity and torque problems in roller bearings, temperature rise and service life problems in high-speed bearings, and making the enterprise's CAE analysis technology reach an advanced level as a whole. At the same time, based on years of product design experience and industry design standards, we have improved and optimized various types of standard bearing design specifications, established a systematic and comprehensive enterprise design standard, and achieved a one-time development success rate of over 90% for new projects in the past three years.
4. Core technology: Bearing simulation test bench technology
Technical source: independently developed
Application: The bearing simulation bench test can simulate the operation of various types of bearings under different working conditions, and can effectively meet the testing requirements of various extreme environments. The company's bearing simulation test bench technology has been applied in various fields including full range automotive bearings, rail transit bearings, high-end CNC machine tool spindle bearings, etc.
Progressiveness: The company has more than 100 sets of advanced bearing testing equipment, and the bearing testing technology and capacity are leading in the industry.
In the field of automotive bearings, the company's testing has the technical capability to meet the testing requirements of international automotive engine manufacturers. It has dozens of automotive bearing testing machines, covering a full range of automotive bearing testing technologies including engine systems, clutch transmission systems, chassis systems, steering systems, and electrical systems.
In the field of high-end bearings, the company's rail transit bearing testing technology, high-end CNC machine tool spindle bearing testing technology, robot bearing testing technology, etc. have mature capabilities for use. The company has more than 50 high-end bearing testing machines and various supporting testing equipment, which meet the testing requirements of various precision deep groove ball bearings, precision angular contact bearings, high-precision cone bearings and cylindrical bearings in terms of service life, temperature rise, noise, sealing, rapid change direction and other performance tests.
Based on advanced bearing simulation testing technology, the company has independently developed multiple testing machines/equipment with invention patents, providing support and services for the localization of high-end bearings through testing and verification.
5. Core Technology: Precision Manufacturing Technology for Bearings - Automated Online Error Prevention and Testing Technology
Technical source: self-developed
Application: Applied in the production process of bearing products, utilizing automation technology and means to achieve 100% inspection of major projects and 100% error prevention of key projects, effectively improving product quality.
Progressiveness technology: combined with the company's automated connection production technology, a large number of online measurement and error prevention technologies can be integrated into the automated flow production equipment in the bearing production process, effectively preventing human errors and reducing defects in the processing process.
The company utilizes automation technology and means to achieve 100% inspection of major projects, 100% error prevention of key projects, and improve the quality of bearing products. Relevant technologies include but are not limited to automatic detection and error prevention technologies such as bearing inner diameter size, bearing outer diameter size, bearing clearance, flexibility, inner and outer ring end height, bearing torque, bearing vibration, bearing airtightness, appearance defects, etc.
6. Core Technology: Precision Manufacturing Technology for Bearings - Combination Technology of Bearing Forging and Rolling Processes
Technical source: self-developed
Application: Applied in the forging and rolling processes of bearing products, it effectively solves problems such as linear metal material flow and grain density, and improves technical indicators such as material utilization rate, grain size, and fatigue strength of bearing products.
Progressiveness technology: The company takes the lead in developing and applying the "upsetting+cold rolling" and cold extrusion process combination technology of bearing rings in the domestic bearing industry. Through the systematic technical research of this combination process, the company has created a "no cutting" machining process for bearing rings and pioneered the development of precision closed multi station production technology in the domestic bearing industry. The combination technology covers a wide range of technical fields, including material technology, mold technology, process technology, etc. It effectively solves the problems of metal material streamline and grain density, increasing material utilization by 20%, grain size by 1.5 levels, and improving the fatigue strength of bearing products.
7. Core Technology: Precision Manufacturing Technology for Bearings - Heat Treatment Technology
Technical source: independently developed
Application situation: Applied in the heat treatment processing environment of bearing products, the company has the ability to provide all types of heat treatment technology for bearing components, effectively improving technical indicators such as bearing service life, impact strength, and wear resistance.
Progressiveness of technology: The company has built a large-scale bearing heat treatment processing plant, which has the production and technical capabilities of full type heat treatment (nitrate quenching, oil quenching, etc.), quenching and tempering treatment, carburizing and nitrocarburizing heat treatment, quenching and tempering and normalizing of oversize bearing rings, isothermal bainite quenching, vacuum heat treatment, etc., realizing the independent control of heat treatment technology and quality of bearing parts.
In terms of innovative advanced heat treatment technology, the company's anti pollution and long-life heat treatment technology for bearings can increase their lifespan by more than 5 times, heavy-duty and impact resistant bearing heat treatment technology can increase their impact strength by 30%, and precision double refinement heat treatment technology can greatly improve the wear resistance life of bearings.
8. Core Technology: Precision Manufacturing Technology for Bearings - Automation (Grinding and Assembly) Connection Production Technology
Technical source: independently developed
Application situation: Applied in the fully automatic bearing grinding and assembly production line of the bearing production line, it can achieve a basically fully automated production process, effectively improve production efficiency, energy utilization, and reduce the rate of defective products.
Progressiveness technology: The company's bearing production workshop has successfully applied the full-automatic bearing grinding and assembling production line, realizing the basic full-automatic production process. The company's automation (grinding and assembly) production technology is at the leading level in the industry. According to calculations, the production efficiency has increased by more than 20%, the energy utilization rate has increased by more than 10%, the defect rate has decreased by more than 20%, and the overall operating cost has been reduced by more than 20%.
9. Core Technology: Precision Manufacturing Technology for Bearings - Equipment Networked Automatic Management Technology
Technical source: independently developed
Application situation: The independently developed equipment full state monitoring software can effectively provide reliable data support for equipment management and production monitoring, and improve production management efficiency.
Progressiveness of technology: The production control system independently developed by the company was launched in 2008. The system realizes the full status monitoring of equipment (including shutdown, adjustment, adjustment timeout, operation, over process time, maintenance, repair request, service request, etc.), related status time, equipment cycle times, and over process times through the way of embedded PLC; Statistics on the time, startup rate, running rate, average service response speed, etc. of relevant states. The system can generate various reports such as equipment operation reports, equipment maintenance reports, equipment operation reports based on different query methods, equipment operation daily Gantt charts, etc., providing real-time and reliable data support for bearing production equipment management.
