Driving means bender punch holder in the folder, including: clamping seat, bottom clamp die holder fixedly connected slider, the slider is set on the base of the chute, the slider can slide chute, One end of the connecting rod and slider active connection; characterized in that: the other end of the connecting rod is connected with one end connected to the arm activities, an intermediate portion connected to the arm by a hinge pin in the base, the Zhengzhou stamping elbow, branch connection The other end of the rod movable arm actuating cylinder connected to the drive cylinder fixedly mounted cradle. Elbow crease mold wherein: the stent and bending turntable are connected and fixed by bolts and fixed die holder on the machine; the movable mold slide bolt through the activities connected with the machine, said movable mold and bending turntable a comb contact portion, the mutual mosaic, can be relatively slidable. Bend in the production and the use of appropriate production processes and production standards of production and production, to ensure an important role and value, stamping elbow in use, according to certain production methods and principles. Wear elbow insulation performance to a certain degree of progress, but because the temperature of the reaction is not high (even no more than 1200 ℃), short reaction time, reducing out of aluminum is still stuck in low temperature phase β-Al2O3, it has not been able to convert for the high-temperature phase α-Al2O3 (transition temperature exceeds 1300 ℃). With alumina, but the world of difference between the high temperature and low temperature phase of alumina with alumina in strength, hardness and density function. Because the response time is short, low temperature phase of alumina and iron centrifugal separation is not complete, resulting in the ceramic layer is not dense, loose particles, low hardness. 95 ceramic wear elbow lining paste, alumina content of not less than 95%, and all high-temperature phase α-Al2O3, the sintering temperature up to 1670 ℃, ensure that the material quality. From a practical point of view the effect of wear, Hebi stamping elbow, wear elbow durable time is more than five times the composite ceramic elbow. In addition, the entire boiler hanger bearing capacity, the steel elbow, elbow composite ceramics are by weight and thickness to win, and some wear elbow wall insulation more than 40 mm thick, the unit design perspective, no doubt to increase the weight hanger and shorten the service life. The current market price of insulation elbow: Alloy around 18,000 yuan per ton, cast elbow 13,000 yuan per ton, 17,000 yuan per ton composite elbow. These types of insulation elbow particularly heavy, they are based on weight to seek profits. That is, an alloy is twice the price of insulation elbow resistant ceramic elbow, elbow with an alloy of money, Liaocheng stamping elbow, you can buy two wear-resistant ceramic elbow, elbow in the actual insulation sales has a market price, can produce certain production efficiency, guaranteed to produce a certain role and value in practical work. Zhengzhou stamping elbow, Bo Yan Pipe (online consultation), punching elbow by Bo Yan Pipe Co., Ltd. Yanshan County. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!