1. Classification testing service

(I) Ore characteristics analysis

Composition detection: Use advanced spectrometers to conduct comprehensive elemental composition analysis of the ore mined from the mine. Accurately determine the content of various metal and non-metal elements in the ore, such as metal elements such as iron, copper, lead, zinc, and the proportion of non-metal elements such as silicon, aluminum, and calcium. Based on these composition data, evaluate their impact on the wear characteristics of high- and low-chromium alloy cast ball forgings. For example, if the ore contains high-hardness minerals such as quartz, it will accelerate the wear of the cast ball forgings. At this time, it may be necessary to use cast ball products with high chromium content and high hardness.

Hardness test: Use Rockwell hardness tester, Brinell hardness tester and other equipment to test the hardness of ore samples collected from different batches and different regions. Understand the distribution range of ore hardness to provide a basis for the reasonable selection of the hardness of cast ball forgings. Generally speaking, for ores with higher hardness, high-chromium alloy cast balls with higher hardness and better wear resistance need to be matched; for ores with relatively low hardness, low-chromium alloy cast balls can reduce costs while ensuring the grinding effect.

Particle size analysis: Analyze the particle size composition of the ore through instruments such as laser particle size analyzers. Determine the proportion of particles of different sizes in the ore to judge the grindability of the ore. For ores with larger particle sizes and difficult to grind, cast ball forgings need to have stronger impact toughness so that they are not easy to break during the impact crushing process; while for ores with smaller particle sizes, more attention is paid to the grinding efficiency and wear resistance of cast ball forgings.

(II) Adaptability test of cast ball forgings

Simulated grinding test: Build a small ball mill to simulate the actual grinding conditions of the mine. In the test, alloy cast ball forgings of different specifications and different chromium contents and ore samples to be tested are added, and parameters such as grinding time, rotation speed, ball-to-material ratio similar to the actual mine are set. By observing the wear of cast ball forgings during grinding, including indicators such as wear amount and wear uniformity, its adaptability to the ore is evaluated. For example, if a low-chromium alloy cast ball has too much wear in the simulation test, it may be necessary to consider replacing it with a high-chromium alloy cast ball or adjusting the operating parameters of the ball mill.

Wear performance evaluation: After the test, the worn cast ball forgings are weighed and the wear amount is accurately calculated. At the same time, the wear morphology of the surface of the cast ball forgings is observed by scanning electron microscopy (SEM) and other microscopic analysis methods to analyze the wear mechanism, such as abrasive wear and fatigue wear. According to the results of the wear performance evaluation, the most suitable cast ball forging product model and material are recommended to mining enterprises to improve grinding efficiency and reduce wear costs.

Service life prediction: Combining the simulated grinding test data and the actual mine operation data, mathematical models and statistical methods are used to predict the service life of the recommended cast ball forgings under the actual working conditions of the mine. Provide reference for mining enterprises to formulate reasonable procurement plans and equipment maintenance plans to avoid production interruptions and cost increases caused by premature failure of cast ball forgings.

2. Full set of equipment supply

(I) Cast ball forgings for ball mills

Specification selection: According to the model, specification and production process requirements of the mine ball mill, high and low chromium alloy cast ball forgings of appropriate specifications are accurately matched for customers. For example, for large ball mills, cast balls with larger diameters are usually selected to provide sufficient impact energy; while for small ball mills or fine grinding stages, cast balls or cast forgings with smaller diameters are selected to improve grinding efficiency. At the same time, according to the different chamber functions of the ball mill, cast ball forgings of different specifications are reasonably matched to optimize the grinding body gradation and improve the mill output and product quality.

Material customization: According to the ore characteristics and working conditions of different mines, personalized cast ball forging material customization services are provided. For mines with severe wear and harsh working conditions, alloy cast balls with high chromium content (such as chromium content of 10% - 30%) can be customized, which have extremely high hardness and wear resistance; for some occasions with high toughness requirements and large impact loads, multi-alloy cast balls or low-chromium alloy cast balls can be used in combination with high-chromium alloy cast balls to ensure a certain wear resistance while improving the impact resistance of cast ball forgings.

Product quality control: During the production process, the ISO9001 quality management system is strictly implemented, and every link is strictly controlled from raw material procurement, smelting, casting, heat treatment to finished product inspection. Advanced smelting equipment and precise composition detection instruments are used to ensure that the chemical composition of cast ball forgings meets the standard requirements; by optimizing the casting process, such as using iron mold sand coating process, constant temperature casting process, etc., casting defects are reduced and product quality stability is improved; advanced heat treatment equipment and processes are used, such as double-row rod continuous quenching, etc., to ensure that cast ball forgings have good hardness, toughness and wear resistance matching. Before each batch of products leaves the factory, strict hardness tests, impact toughness tests and dimensional accuracy tests are carried out to ensure that the product quality meets or exceeds national standards and customer requirements.

(II) Supporting equipment and accessories

Supply of linings: Provide linings of various materials that match high and low chromium alloy cast ball forgings, such as high manganese steel linings, rubber linings, alloy linings, etc. According to the different parts and working conditions of the ball mill, the appropriate lining material and structure are recommended. For example, in the feeding end and the barrel of the ball mill, due to the greater impact and wear, high manganese steel lining or alloy lining can be selected to increase its service life; in the fine grinding bin and other parts, rubber lining can be selected to reduce noise, reduce energy consumption, and protect the barrel. The design and manufacture of the lining fully consider its fit with the ball mill barrel and the convenience of installation to ensure firm installation and reliable operation.

Feeder, conveyor and other equipment: Provide complete feeding and conveying system solutions for mining enterprises, including vibrating feeders, electromagnetic feeders, belt conveyors, bucket elevators and other equipment. According to the production scale, material characteristics and process flow of the mine, these equipment are reasonably selected and configured to ensure that the materials can enter the ball mill evenly and stably, and the ground products can be smoothly conveyed to the subsequent processes. The design and manufacture of the equipment follows the relevant industry standards, and has the characteristics of stable operation, large conveying capacity, low energy consumption, and convenient maintenance.

Equipment installation and commissioning services: On the basis of the supply of a full set of equipment, provide customers with professional equipment installation and commissioning services. Send experienced technicians to the site to provide equipment installation guidance to ensure that the equipment installation meets the design requirements and installation specifications. After the installation is completed, the entire system is fully debugged, including no-load debugging and load debugging of the ball mill, and linkage debugging of equipment such as feeders and conveyors. Through debugging, optimize the operating parameters of the equipment to ensure that the equipment can operate normally and stably to meet the design production capacity and product quality requirements. At the same time, provide on-site training for customer operators to familiarize them with the operation methods, maintenance points and safety precautions of the equipment.

III. After-sales service

(I) Regular return visits and maintenance

Return visit plan formulation: Establish a complete customer return visit system and formulate personalized return visit plans based on customer usage and needs. For new customers or customers with newly installed equipment, conduct the first return visit within 1 month after the equipment is put into operation to understand the equipment's operating conditions and customer experience; thereafter, conduct regular return visits every 3 months. For old customers and customers with stable equipment operation, conduct return visits every six months. Return visit methods include telephone return visits, door-to-door return visits and online return visits to ensure timely understanding of customer needs and equipment operation conditions.

On-site maintenance service: During the return visit, the technicians will carry professional testing tools and necessary repair parts to conduct a comprehensive inspection and maintenance of the equipment. The inspection content includes the wear of the ball forgings, the wear and tightening of the liner, the operating parameters of the equipment (such as current, voltage, temperature, etc.), the connection and lubrication of each component, etc. For the problems found, timely processing and repair, such as replacing the severely worn ball forgings and liners, adjusting the operating parameters of the equipment, tightening loose parts, etc. Ensure that the equipment is always in good operating condition and extend the service life of the equipment.

Maintenance report provision: After each return visit and maintenance, the technicians will provide customers with a detailed maintenance report. The report content includes the inspection of the equipment, the problems found and the treatment measures, the operating status evaluation of the equipment, and subsequent maintenance suggestions. The maintenance report is in duplicate, one copy is given to the customer to keep, and the other copy is archived by the company to track and manage the maintenance of the customer's equipment.

(II) Fault response and maintenance

24-hour service hotline: Set up a 24-hour after-sales service hotline to ensure that customers can contact us in time when the equipment fails. The service hotline is equipped with professional customer service personnel to answer customers' inquiries and fault repair calls at any time. After receiving the repair call, the customer service personnel will record the customer's fault description, equipment model, contact information and other information in detail, and immediately convey the fault information to the relevant technicians.

Quick response mechanism: For faults reported by customers, a quick response mechanism is established. After receiving the fault information, the technicians will formulate corresponding response plans based on the severity of the fault and the customer's geographical location. For general faults, we promise to give customers a preliminary solution within 4 hours; for emergency faults, such as equipment shutdown, we ensure that technicians are dispatched to the site for repair within 24 hours. On the way to the site, the technicians maintain close communication with the customers, understand the latest situation of the fault, and prepare the tools and accessories required for repair in advance.

Repair quality assurance: After the technicians arrive at the site, they will conduct a detailed diagnosis of the equipment fault, determine the cause of the fault and the repair plan. During the repair process, they will strictly follow the repair operating procedures and quality standards to ensure the quality of the repair. After the repair is completed, the equipment will be fully debugged and tested to ensure that the equipment resumes normal operation. At the same time, customers are provided with precautions and maintenance suggestions for the use of the repaired equipment. For the old parts replaced after repair, after confirmation by the customer, they will be brought back to the company for analysis and processing, so as to summarize experience and improve product and service quality. For the repaired equipment, a certain period of quality assurance period is provided. During the warranty period, if the equipment has the same fault again, it will be repaired free of charge.

(III) Technical training and support

Operation training: Provide customers with free equipment operation training, and the training targets include equipment operators, managers, etc. The training content includes the structural principle, operation method, safety precautions, daily maintenance and other aspects of the equipment. The training method adopts a combination of theoretical explanation and on-site practical operation, so that trainees can intuitively understand the operation process and operation points of the equipment. After the training, the trainees will be assessed to ensure that they can master the operation skills of the equipment.

Technical consultation: Provide customers with a full range of technical consulting services and answer various technical problems encountered by customers during the use of equipment. Customers can consult us at any time through telephone, email, online customer service, etc. Our technicians will give professional answers and suggestions as soon as possible. At the same time, we also regularly collect customers' technical problems and feedback, and organize them into technical materials for customers' reference and learning.

Technology upgrade service: With the continuous development and innovation of technology, we will continue to upgrade the technology of our products and equipment. For customers who have purchased our equipment, we will promptly convey the technology upgrade information to customers and provide customers with technology upgrade services based on customer needs and actual equipment conditions. Through technology upgrades, we can improve the performance and production efficiency of equipment, reduce energy consumption and maintenance costs, and create greater value for customers.