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The traditional extrusion machine parts can be directly applied to the extrusion die casting process, and only the die clamping force can be used, and only the clamping force is a driving force for propulsion. The magnitude of the die force determines the size of the extrusion force. As a result, the clamping force is the clamping force and can be used as the extruding force of the whole hydraulic press parts. The forward extrusion force of the elbow extrusion press is equal to its modulus, and the force of the cylinder is multiplied by the lever ratio of the locking mechanism, but it can not exceed the compressive strength that the locking mechanism can bear. Squeeze casting with the device, because the clamping position did not arrive at the "early self locking mechanism", and the end position is the extrusion clamping resistance "point", in the same casting pressure filling, projection area can produce parts decreased.
At present, China development of extrusion machine parts industry is still in the primary stage, lack of standardization of the market, especially the lack of information to guide the exhaust gas adsorption unit and the overall transparency of the industry industry, plus sales channels, market demand information feedback is not timely, for the enterprise lack of enterprise communication with the host machine parts extrusion, resulting in long term since many products overcapacity, inventory backlog of cases. Waste of resources on the product, the use of effective funds, resulting in difficulties in cash flow of enterprises, late development and production can not be guaranteed. From the development of the industry as a whole, we can call it "repetitive investment" of the product. In our words, "good steel" is not used in the blade, which will inevitably hinder the rapid development and continuity of the parts industry.
Parts extrusion machine is extrusion machine accessories product development foundation, support and bottleneck, when the extrusion machine parts to a certain stage of development, research on high technology industry gathered in the main engine, hydraulic transmission and control technology of key parts. Mastering and relying on high-quality and distinctive key components becomes the strategic way for manufacturers to seek "thriving". Association Luo Baihui said that the industry should take the lead in the industry to set up technical alliances, key components for technical research. However, joint ventures may not be able to obtain key technologies, and foreign companies are extremely reluctant to hand over their achievements in mechanical technology over the years to the Chinese side. Moreover, in the situation where many technologies have been monopolized, overseas enterprises will not even import technology into china.
More and more domestic extruder parts enterprises have gone abroad to acquire overseas enterprises. The financial crisis and the European debt crisis reduced the extrusion machine parts enterprises, rare earth ore demand in Europe and America vehicle plant drying airport, these overseas enterprises get extrusion machine accessories OEM orders, facing operational difficulties; few domestic enterprises have advantages of extrusion machine parts in the scale, if further development, it is necessary to break through the core technology barriers to overseas mergers and acquisitions is a way of rapid development, the technology can make up for the short board in a short period of time. However, the local extrusion machine parts enterprises through overseas acquisitions to improve their technological strength, breaking the strategy of foreign enterprises to control key technologies and market situation is becoming increasingly evident. Many foreign extrusion machine parts mainly supporting enterprises have decades of history, even more than 100 years, the scale of enterprises is relatively large, technology is mature, variety is also very complete, almost everything.
