7、casting cost is an important part of the product cost, to reduce the cost of products, it is necessary to reduce the cost of castings as much as possible. For a long time, the quality of castings has not attracted sufficient attention, especially to the intrinsic quality of castings and production costs, sanzhuji cooperation foundry exists with the scrap rate as the assessment index of the quality of castings, in fact, the scrap rate can not represent the quality of castings, it can only reflect the technical level and management level of enterprises, the intrinsic quality and production costs are ignored more castings at home and abroad Lack of competitiveness in the market.
8、casting production process is a complex process with a wide range of processes and related factors from many aspects. Currently there are a number of common problems, such as low quality of castings (especially the intrinsic quality), high production costs (low efficiency, high energy consumption), and serious environmental pollution. The reasons for these problems can be summarized as follows.
8.1 Casting quality standards are not perfect, not clear. In China''''''''s existing national standards, ministerial standards and technical guidance documents on casting quality standards and low quality requirements, part of the sixties and seventies, the urgent need to revise and approach to international standards. Only to improve and strictly implement the casting quality standards, China''''''''s casting production quality problems can gradually be solved.
8.2 casting with a variety of raw materials of low quality. Without high-quality raw materials it is difficult to produce high-quality castings. For example, low sulfur and low phosphorus pig iron, high-quality casting coke is difficult to ensure the supply of sand for casting without a unified production management body, the quality can not be guaranteed, other raw and auxiliary materials have a similar situation.
8.3 Management level is backward. For a long time, many companies have taken the final inspection of castings as the main means of quality control, after the implementation of total quality control, this situation has not been fundamentally changed, which is a negative approach to quality control. Should check and control the entire casting production process, and the use of statistical principles, prior detection and control of the production process may produce abnormal factors, so as to achieve the purpose of continuous stabilization of the production process and reduce the rate of scrap, only then can improve product quality and reduce production costs.
8.4 Process and technology level is relatively backward. To improve the quality of castings, first of all, rely on advanced science and technology and quality management, from the current situation in China, the urgent need to improve the management level, but fundamentally, or to improve the level of science and technology.
8.5 The lack of casting testing technology. To improve the quality of castings, not only high-quality raw materials, advanced science and technology and strict quality management system, but also rely on advanced testing technology and means. Improve the level of testing technology is an important part of the casting production from experience to science.
9、sanzhuji summarize the main factors affecting the quality of castings in the production process of sand casting from the following aspects.
The organization and management of production.
The quality of raw materials, equipment and process equipment.
The quality of control of various process parameters.
The quality of the producer''''''''s operation.
The production process must implement the "market-oriented" modern management principles, reduce production costs, shorten the production cycle, improve customer service, so as to improve the competitiveness of enterprises.
Qingdao Sanzhuji Equipment Manufacturing Co., Ltd. specializes in the production of Green Sand Molding Line,Self-hardening sand molding line,foundry machines,Sand molding machine,Sand casting equipment,sand mixer,GS high efficiency rotary mixer,Resin sand mixer,no-bake resin sand mixer,Jolt squeeze molding machine/Jolt-squeezing moulding machines,Multi- Piston Moulding Machine/Hydraulic multi-piston moulding machine,sand casting molding machine,sand reclamation equipment，foundry molding machine,flaskless moulding machine,shot blasting machine,dust collector,according to the amount of old sand recovered Carry out plan customization, and provide sand reclamation equipment installation, commissioning, and training. Welcome guests to visit the factory.
