Analysis of Product Competitiveness of Construction Hardware Profiles in China

After more than two decades of development, a large number of on-site technical personnel and industrial workers have been trained in the field of building profile production in China, and a wealth of practical experience has been accumulated. However, it is more and more difficult to obtain the survival, development, and growth of enterprises according to the traditional production technology and corporate profits. To increase the technological added value of architectural hardware products in order to increase product competitiveness, it is necessary to break through the existing technological bottlenecks, start with new product development, increase production efficiency, and strengthen process technology control and improvement, so as to improve the core competition of enterprises and products. force. The specific measures are as follows:

1: The development of energy-saving aluminum doors and windows, new curtain wall products China's energy shortage situation can not be eased in the near future, therefore, new product development must be around the theme of energy conservation. Aluminum doors and windows are mainly two aspects: First, the development of broken bridge (gel injection) insulation window, the current situation, the popularity of this window is an inevitable trend. However, taking into account the current state of economic development in China, not all people can afford to use broken-bridge (plastic) insulation windows. Therefore, on the other hand, the structural optimization and improvement of the general flat open and sliding windows are improved. At present, many common casement windows and sliding windows, starting from improving the airtightness and reducing the amount of aluminum used, still have a lot of room for improvement in the structure, thereby reducing the degree of convection and production costs of hot and cold air. For the aluminum alloy curtain wall, it is mainly the broken bridge (plastic injection) curtain wall structure. The domestic curtain wall structure in this area is still relatively small. Secondly, by increasing the plastic accessories to achieve flexible contact between the inner and outer parts of the curtain wall, it can also play a certain energy saving effect.

2:Improve the design, processing and manufacturing level of moulds At present, the vast majority of aluminum extrusion manufacturers in China use single-hole die extrusion. The application of porous die is limited to the production of small-section profiles on small-tonnage extruders. For ordinary building profile products, usually a single cross-section has a large output and lots of batches. Therefore, the conditions for the use of porous die extrusion are required. This requires that the mold designer's innovation consciousness and processing equipment and precision must be upgraded to a new level, thereby increasing the The efficiency of extrusion production. In this regard, we have a wide gap with our European and American counterparts.

3: Improve the melt quality of aluminum rods Some aluminum production enterprises, due to the lack of attention to the quality of fused cast products, and the product quality problems in the extrusion process, the causes of ingot quality often account for about 50%. Combined with uniform fire effects, the impact on the extrusion speed accounts for about 70%. According to the author's observation, the control of the smelting workshop of most aluminum profiles manufacturers is not ideal, the refining effect of the melt is poor, and no attention is paid to how to prevent the secondary pollution of the melt after the furnace.

4: The use of advanced extrusion technology in the optimization of mold design, mold material properties and surface treatment effect, based on the use of high quality aluminum rod and rapid heating, can achieve the purpose of low-temperature rapid extrusion, in order to ensure that When the pressure outlet temperature reaches 500° C. or more, the rod temperature is controlled at a relatively low temperature range. At present, individual manufacturers adopt this method and have achieved good results, significantly increasing the output of single extrusion machines.