The R&D and R&D strategy for new products of abrasive tools is the lifeblood for the survival and development of abrasives companies in the fierce technological competition. It is the realization of the upgrade of abrasive products for “generation, trial production, research generation and concept generationâ€. The important stage of the new generation's aim is to play a decisive role in the direction of product development, product advantages, opening up new markets, and improving economic efficiency. It is of great significance to discuss the research and development strategy of abrasives tools. The development of new products is a daunting task for our abrasive abrasive industry. The basic requirement of our abrasive abrasive companies is to continuously improve product quality. In the years of technical cooperation between Jianshi Abrasives Technology Information Consulting Co., Ltd. and the company, we expressed simple recommendations for the development of new products for abrasives and abrasives, and we would like to share progress with friends in the industry.
The current situation of research and development of new products of resin abrasive tools by domestic abrasives enterprises The majority of domestic resin abrasive tool manufacturers adopt a low-cost strategy (regardless of product quality, they only reduce the cost, lower the sales price), and the real cost-reducing new products are The new products of resin grinding tools that offer the same performance at lower cost mainly refer to enterprises that use new technologies to improve their production processes or increase production efficiency, reduce the cost of the original products, but maintain new products with unchanged original functions, so many For most domestic abrasives enterprises, the investment in research and development of new products is limited, and more work is done to stabilize the product quality. This creates a vicious circle. Because of the instability of products, the market is more difficult to do, and there is no new fund for research and development. Products, and this low-error cost strategy is a double-edged sword. On the one hand, products have great competitiveness in the low-end market. On the other hand, product quality has become fluctuating due to excessive pursuit of low-cost, if the market is large The change will inevitably affect the survival of the company.
According to Jianshi Abrasives Technology Information Consulting Co., Ltd.'s technical service experience and customer feedback information, many domestic resin grinding equipment companies are not clear on the choice of raw materials, regardless of the indicators, direct procurement, it is very difficult to put the grinding With a good product. This point can be clearly seen from the purchase of foreign independent companies. Most of the foreign-funded enterprises provide clear product indicators to the raw material supply companies for procurement. They will be used after passing the inspection and test, and will not use the size of raw material suppliers. Secondary or quality unrelated factors are purchase conditions. For example, domestic companies are also producing resin grinding wheels, and their choice of resin powder is quite different. Some abrasive companies are indiscriminate in buying large-scale enterprises directly; some abrasive companies are comparing and choosing to use stable-feeling enterprise products; some abrasive enterprises are based on the company’s production experience The resin powder production companies provided separate formulations for the abrasive company. However, the long-term use of the products resulted in the abrasive companies not being satisfied with the product quality results of their current suppliers and past suppliers. There is no innovation and improvement in any of these low-end products, which can not bring new satisfaction and greater benefits to customers. The survival and development of abrasives enterprises is such that the development of the abrasives industry is not unfavorable.
Of course there are the following factors:
1. The number of domestic large-scale resin powder production enterprises is small;
2. The scale of resin powder manufacturers and equipments of ** Abrasives enterprises are lagging behind;
3, imported resin powder or domestic resin powder production companies proposed indicators, there is a problem of cost, for low-cost low-cost companies will not choose;
4. The sales of abrasive resin enterprises in domestic large resin powder production enterprises account for a small share, so they are reluctant to invest more manpower and resources to develop abrasive resin special series resin powder products;
5. The domestic resin powder production enterprises themselves have insufficient technical strength and they are still unable to meet the capability of developing new series of products for the abrasive industry;
6, suppliers are mass production, there are quality problems, a batch of poor quality, there will be a considerable number, which is one of the reasons.
The foreign professional material supply manufacturers will develop various specifications and models based on the characteristics of abrasive tools. These types of products have different indicators and application ranges. Abrasive companies can make choices according to different product needs. For example: Abrasives Technology Information Consulting Co., Ltd. has received many times the reason why the resin cutting sheet production companies consult the cutting sheet to become a wholesale soft product. The time occurs in the summer and more, but it has also appeared frequently in the spring and it can not be understood. With years of experience in technical cooperation, targeted analysis and series adjustments, the opportunities for waste products have been greatly reduced and the normal operation of the company has been ensured.
The Abrasive Abrasive Company's experience in the research and development of new products for Abrasive Abrasives Abrasive Abrasives Because of the objective factors of raw materials and processes, we can't put more theoretical data to complete the quality stability and new product R&D. More practical experience is needed. Constant experimentation can stabilize product quality and continuously develop new products.
From all aspects of the report, the use of phenolic resin as a resin grinding wheel is almost the same in the world. A company removes the benzene ring resin (an epoxy-modified phenolic resin) used in the most heavily loaded billet grinding wheels, and basically uses phenolic resins, and the basic resin formulations and processes have been finalized. However, the bonding agent referred to here is a broad one, that is, in addition to the binding agent itself, it also includes fillers and additives, and the additives are ever-changing. The composition formula of the additive, what actually represents only the grinding wheel manufacturer, has little change in its basic binder. A company and other grinding wheel manufacturers have a very large number of patents on additives (fillers), and they are still emerging in the 1980s and deserve special attention.
The filler used in the initial grinding wheel was some inert material, such as clay, vermiculite, etc., with the aim of reducing costs. Later, the cryolite produced in Greenland, an aluminum ore ore, whose main component was added into it, could greatly improve the grinding efficiency and was soon promoted in resin grinding wheels. It should be noted that cryolite is still one of the major active fillers today. At the grinding interface temperature, especially in the presence of carbon and water vapor generated by the decomposition of the resin, the cryolite may be thermally decomposed to produce hydrofluoric acid, and the filler participates in the reaction at the grinding interface temperature. These reactions can occur between two or more fillers, between the filler and the binder, or between the filler and the metal surface to be abraded. These reactions can occur when the filler is in a solid, molten, or decomposed state. It is common to use a mixture of fillers, one of which acts as a flux for other fillers or forms a low melting eutectic with other fillers. Decomposing the filler may weaken the binder so that the worn out abrasive particles fall off, minimizing the grinding wheel's bluntness and slippage. This filler can be used to organize tight wheels to increase the metal removal rate while maintaining an appropriate life. Decomposed fillers can provide a more efficient acidic grinding atmosphere. Tests have shown that grinding efficiency is low under an inert atmosphere such as ammonia. It is well known that the use of fillers that produce *, chlorine, or fluorine at the grinding interface can increase the efficiency of grinding stainless steel. It can be seen that the role played by the active filler in grinding is very complicated and remains to be explored in many aspects. However, its effect is unquestionable. The composition of various proprietary fillers was analyzed and found that most of them contained fluorine and chlorine. Bromine, cerium, germanium or phosphorus elements.
The research and development of new products for grinding tools and research on grinding technology are inseparable. Research and development of new products must proceed from the needs of customers. The customer needs are higher requirements for the grinding of abrasive products.
Unlike traditional fine grinding processes, high-speed grinding is a very high metal removal rate. If we look back at the history of grinding technology, it is not difficult to find that high-speed grinding technology started from the renovation of copper billets. In the process of turning steel, various defects such as cracks, wrinkles, crevices, and interlayers are generated on the surface of the blanks from the casting to the rolling. If these surface defects are not removed before the next process, it is bound to seriously affect the quality of the finished product. Renovation method. In the past, cold chisels were used. This method was noisy (such as using a gas chisel), was labor-intensive and incomplete, and failed to produce high-quality final products. After the World War II, the grinding process was adopted. From Norton’s patent record, in the early 1950s, the company focused on developing this new application field. The contents included the design and manufacture of various grinding machines and high-speed grinding wheels. In order to obtain the highest grinding efficiency, the machine tool uses a constant pressure (constant grinding force) or constant power (constant grinding tangential force) design in opposition to the traditional constant grinding depth and cutting amount. In the case of grinding wheels, a series of measures such as using high-strength abrasives, benzene-ring resin binders, hot-pressing methods, and reinforcing fillers were used to increase the working speed from 35-48 m/s to 60-80 m/s. The results of these efforts were very successful. By the early 1960s, the grinding process had completely replaced the cold chiseling process in steel industry refurbishment and casting cleaning in industrialized countries. By the middle of the 1970s, the annual sales of rough grinding wheels had been kept in line with that of grinding wheels, and the main spindle power of the grinding machines was as high as nearly 370 KW. Obviously, the high-speed grinding technology of the bit grinding groove is developed on this basis. Therefore, when developing the high-speed grinding wheel of the bit grinding groove, it is very beneficial to learn from the experience of the grinding wheel.
The current situation of research and development of new products of resin abrasive tools by domestic abrasives enterprises The majority of domestic resin abrasive tool manufacturers adopt a low-cost strategy (regardless of product quality, they only reduce the cost, lower the sales price), and the real cost-reducing new products are The new products of resin grinding tools that offer the same performance at lower cost mainly refer to enterprises that use new technologies to improve their production processes or increase production efficiency, reduce the cost of the original products, but maintain new products with unchanged original functions, so many For most domestic abrasives enterprises, the investment in research and development of new products is limited, and more work is done to stabilize the product quality. This creates a vicious circle. Because of the instability of products, the market is more difficult to do, and there is no new fund for research and development. Products, and this low-error cost strategy is a double-edged sword. On the one hand, products have great competitiveness in the low-end market. On the other hand, product quality has become fluctuating due to excessive pursuit of low-cost, if the market is large The change will inevitably affect the survival of the company.
According to Jianshi Abrasives Technology Information Consulting Co., Ltd.'s technical service experience and customer feedback information, many domestic resin grinding equipment companies are not clear on the choice of raw materials, regardless of the indicators, direct procurement, it is very difficult to put the grinding With a good product. This point can be clearly seen from the purchase of foreign independent companies. Most of the foreign-funded enterprises provide clear product indicators to the raw material supply companies for procurement. They will be used after passing the inspection and test, and will not use the size of raw material suppliers. Secondary or quality unrelated factors are purchase conditions. For example, domestic companies are also producing resin grinding wheels, and their choice of resin powder is quite different. Some abrasive companies are indiscriminate in buying large-scale enterprises directly; some abrasive companies are comparing and choosing to use stable-feeling enterprise products; some abrasive enterprises are based on the company’s production experience The resin powder production companies provided separate formulations for the abrasive company. However, the long-term use of the products resulted in the abrasive companies not being satisfied with the product quality results of their current suppliers and past suppliers. There is no innovation and improvement in any of these low-end products, which can not bring new satisfaction and greater benefits to customers. The survival and development of abrasives enterprises is such that the development of the abrasives industry is not unfavorable.
Of course there are the following factors:
1. The number of domestic large-scale resin powder production enterprises is small;
2. The scale of resin powder manufacturers and equipments of ** Abrasives enterprises are lagging behind;
3, imported resin powder or domestic resin powder production companies proposed indicators, there is a problem of cost, for low-cost low-cost companies will not choose;
4. The sales of abrasive resin enterprises in domestic large resin powder production enterprises account for a small share, so they are reluctant to invest more manpower and resources to develop abrasive resin special series resin powder products;
5. The domestic resin powder production enterprises themselves have insufficient technical strength and they are still unable to meet the capability of developing new series of products for the abrasive industry;
6, suppliers are mass production, there are quality problems, a batch of poor quality, there will be a considerable number, which is one of the reasons.
The foreign professional material supply manufacturers will develop various specifications and models based on the characteristics of abrasive tools. These types of products have different indicators and application ranges. Abrasive companies can make choices according to different product needs. For example: Abrasives Technology Information Consulting Co., Ltd. has received many times the reason why the resin cutting sheet production companies consult the cutting sheet to become a wholesale soft product. The time occurs in the summer and more, but it has also appeared frequently in the spring and it can not be understood. With years of experience in technical cooperation, targeted analysis and series adjustments, the opportunities for waste products have been greatly reduced and the normal operation of the company has been ensured.
The Abrasive Abrasive Company's experience in the research and development of new products for Abrasive Abrasives Abrasive Abrasives Because of the objective factors of raw materials and processes, we can't put more theoretical data to complete the quality stability and new product R&D. More practical experience is needed. Constant experimentation can stabilize product quality and continuously develop new products.
From all aspects of the report, the use of phenolic resin as a resin grinding wheel is almost the same in the world. A company removes the benzene ring resin (an epoxy-modified phenolic resin) used in the most heavily loaded billet grinding wheels, and basically uses phenolic resins, and the basic resin formulations and processes have been finalized. However, the bonding agent referred to here is a broad one, that is, in addition to the binding agent itself, it also includes fillers and additives, and the additives are ever-changing. The composition formula of the additive, what actually represents only the grinding wheel manufacturer, has little change in its basic binder. A company and other grinding wheel manufacturers have a very large number of patents on additives (fillers), and they are still emerging in the 1980s and deserve special attention.
The filler used in the initial grinding wheel was some inert material, such as clay, vermiculite, etc., with the aim of reducing costs. Later, the cryolite produced in Greenland, an aluminum ore ore, whose main component was added into it, could greatly improve the grinding efficiency and was soon promoted in resin grinding wheels. It should be noted that cryolite is still one of the major active fillers today. At the grinding interface temperature, especially in the presence of carbon and water vapor generated by the decomposition of the resin, the cryolite may be thermally decomposed to produce hydrofluoric acid, and the filler participates in the reaction at the grinding interface temperature. These reactions can occur between two or more fillers, between the filler and the binder, or between the filler and the metal surface to be abraded. These reactions can occur when the filler is in a solid, molten, or decomposed state. It is common to use a mixture of fillers, one of which acts as a flux for other fillers or forms a low melting eutectic with other fillers. Decomposing the filler may weaken the binder so that the worn out abrasive particles fall off, minimizing the grinding wheel's bluntness and slippage. This filler can be used to organize tight wheels to increase the metal removal rate while maintaining an appropriate life. Decomposed fillers can provide a more efficient acidic grinding atmosphere. Tests have shown that grinding efficiency is low under an inert atmosphere such as ammonia. It is well known that the use of fillers that produce *, chlorine, or fluorine at the grinding interface can increase the efficiency of grinding stainless steel. It can be seen that the role played by the active filler in grinding is very complicated and remains to be explored in many aspects. However, its effect is unquestionable. The composition of various proprietary fillers was analyzed and found that most of them contained fluorine and chlorine. Bromine, cerium, germanium or phosphorus elements.
The research and development of new products for grinding tools and research on grinding technology are inseparable. Research and development of new products must proceed from the needs of customers. The customer needs are higher requirements for the grinding of abrasive products.
Unlike traditional fine grinding processes, high-speed grinding is a very high metal removal rate. If we look back at the history of grinding technology, it is not difficult to find that high-speed grinding technology started from the renovation of copper billets. In the process of turning steel, various defects such as cracks, wrinkles, crevices, and interlayers are generated on the surface of the blanks from the casting to the rolling. If these surface defects are not removed before the next process, it is bound to seriously affect the quality of the finished product. Renovation method. In the past, cold chisels were used. This method was noisy (such as using a gas chisel), was labor-intensive and incomplete, and failed to produce high-quality final products. After the World War II, the grinding process was adopted. From Norton’s patent record, in the early 1950s, the company focused on developing this new application field. The contents included the design and manufacture of various grinding machines and high-speed grinding wheels. In order to obtain the highest grinding efficiency, the machine tool uses a constant pressure (constant grinding force) or constant power (constant grinding tangential force) design in opposition to the traditional constant grinding depth and cutting amount. In the case of grinding wheels, a series of measures such as using high-strength abrasives, benzene-ring resin binders, hot-pressing methods, and reinforcing fillers were used to increase the working speed from 35-48 m/s to 60-80 m/s. The results of these efforts were very successful. By the early 1960s, the grinding process had completely replaced the cold chiseling process in steel industry refurbishment and casting cleaning in industrialized countries. By the middle of the 1970s, the annual sales of rough grinding wheels had been kept in line with that of grinding wheels, and the main spindle power of the grinding machines was as high as nearly 370 KW. Obviously, the high-speed grinding technology of the bit grinding groove is developed on this basis. Therefore, when developing the high-speed grinding wheel of the bit grinding groove, it is very beneficial to learn from the experience of the grinding wheel.
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