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49results about How to "Reliable shape" patented technology

Upsetting method and upsetting apparatus

The present invention provides an upsetting method capable of unevenly expanding the diameter of a portion to be expanded in the circumferential direction of a blank. A guide body (20) having an insertion hole (21) through which the planned diameter expansion portion (2) of the holding blank (1) is inserted in a vertical bending preventing state is prepared. A protruding piece portion (22) for suppressing diameter expansion that protrudes in the axial direction of the guide body (20) is integrally provided on a part of the front end portion (20a) of the guide body (20). The predetermined diameter expansion portion (2) of the blank (1) fixed in the stationary mold (10) is inserted and held in the insertion hole (21) of the guide body (20). Next, while moving the punch (30) and pressing the portion (2) of the blank (1) to be enlarged by the punch (30) in the axial direction, the guide body (20) is directed toward the punch (30) is moved in the opposite direction of the moving direction, whereby the planned diameter expansion portion (2) of the blank (1) exposed between the front end portion (20a) of the guide body (20) and the fixed mold (10), The diameter expansion is performed in a state where the diameter expansion is suppressed for the contact portion of the planned diameter expansion portion (2) with the protruding piece portion (22).
Owner:SHOWA DENKO KK

Simple aluminum-plastic plate heater and aluminum-plastic plate hot bending technology

The invention discloses a simple aluminum-plastic plate heater and an aluminum-plastic plate hot bending technology. The simple aluminum-plastic plate heater comprises a platform provided with platform supporting columns. A first round pipe cross rod is arranged above one side of the platform. A second round pipe cross rod is arranged outside the side, provided with the first round pipe cross rod, of the platform. The first round pipe cross rod and the second round pipe cross rod are fixed to the output ends of two groups of air cylinders correspondingly. A heater body is arranged on the other side of the second round pipe cross rod. The heater body is connected with a circulating water device. The aluminum-plastic plate hot bending technology comprises the steps that the circulating water device and the heater body are switched on; inner-layer aluminum sheet on the hot bending portion, needing hot bending, on an aluminum-plastic plate is removed; the aluminum-plastic plate is placed on the platform, and heating is conducted; and the air cylinders located on the first round pipe cross rod are started to enable the first round pipe cross rod to press the aluminum-plastic plate, the air cylinders on the second round pipe cross rod are started, the second round pipe cross rod abuts against the hot bending portion of the aluminum-plastic plate in the rising process, and then the hot bending portion of the aluminum-plastic plate forms an arc. By the adoption of the simple aluminum-plastic plate heater and the aluminum-plastic plate hot bending technology, the shape of the product is stable and reliable, the product is free of deformation, manufacturing is simple, operation is convenient and flexible, the practicability is high, and the cost is low.
Owner:SHANGHAI KONGBO IND

A simple aluminum-plastic plate heater and hot bending process

The invention discloses a simple aluminum-plastic plate heater and an aluminum-plastic plate hot bending technology. The simple aluminum-plastic plate heater comprises a platform provided with platform supporting columns. A first round pipe cross rod is arranged above one side of the platform. A second round pipe cross rod is arranged outside the side, provided with the first round pipe cross rod, of the platform. The first round pipe cross rod and the second round pipe cross rod are fixed to the output ends of two groups of air cylinders correspondingly. A heater body is arranged on the other side of the second round pipe cross rod. The heater body is connected with a circulating water device. The aluminum-plastic plate hot bending technology comprises the steps that the circulating water device and the heater body are switched on; inner-layer aluminum sheet on the hot bending portion, needing hot bending, on an aluminum-plastic plate is removed; the aluminum-plastic plate is placed on the platform, and heating is conducted; and the air cylinders located on the first round pipe cross rod are started to enable the first round pipe cross rod to press the aluminum-plastic plate, the air cylinders on the second round pipe cross rod are started, the second round pipe cross rod abuts against the hot bending portion of the aluminum-plastic plate in the rising process, and then the hot bending portion of the aluminum-plastic plate forms an arc. By the adoption of the simple aluminum-plastic plate heater and the aluminum-plastic plate hot bending technology, the shape of the product is stable and reliable, the product is free of deformation, manufacturing is simple, operation is convenient and flexible, the practicability is high, and the cost is low.
Owner:SHANGHAI KONGBO IND
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