Magnesium alloy tube extrusion die without cleaning mold
A technology of magnesium alloy pipe and extrusion die, which is applied in the field of magnesium alloy pipe extrusion die and magnesium alloy pipe extrusion die, and can solve the problems of inconvenient cleaning and so on
Inactive Publication Date: 2010-08-04
CHONGQING UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a no-cleaning mold suitable for magnesium alloy pipe extrusion, which is also beneficial to the extrusion of magnesium alloy pipes, in view of the existing mold is not suitable for the use of magnesium alloy pipes, and has the disadvantages of inconvenient cleaning. Alloy flow during pressing
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[0012] The present invention will be further described below in conjunction with accompanying drawing:
[0013] see figure 1 and figure 2 , the no-cleaning magnesium alloy pipe extrusion die of the present embodiment comprises a diversion die 1 and a mold 2, and one end of the diversion die 1 is axially provided with three diversion holes 5 (the number of diversion holes can be determined according to the size of the pipe. , shape and other factors are determined, such as five or six shunt holes), the other end is axially provided with an annular welding chamber 7 communicating with the shunt hole 5, and the height of the welding chamber 7 is the height of the diversion mold 1 50% or 60% of it is advisable; the central part of the annular welding cavity 7 is provided with the mold bridge 4 (the mold bridge 4 is the part that axially divides the mold cavity into a plurality of shunt holes 5 on the diversion mold) as An integrated mold core 6; the end of the mold core 6 is pr...
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The invention provides a magnesium alloy tube extrusion die of a no-clean mould, which consists of a diversion mould and a pattern die, wherein, a plurality of tap holes are arranged at an axial direction at one end of the diversion mould and a ringlike welding cavity that is communicated with the tap holes is arranged at an axial direction at the other end. A mold core that is connected with a mold bridge into a whole is arranged at the central part of the ringlike welding cavity. The end parts of the mold core are connected with the mold core into a whole and protrude the mold core head of the diversion mould, the cross-sectional area of the mold core head is smaller than or equal to the cross-sectional area of the end part of the mold core. A central shaft of the pattern die opposites to the tap holes that are provided with penetrating type die bodies. A die bearing that is matched with clearance is formed by the tap holes and the mold core head of the diversion mould. The width ofthe clearance of the die bearing is the thickness of a shaped tube. The cross-sectional area of the tap holes and the welding cavity of the diversion mould become larger and larger towards a corresponding pattern die. The magnesium alloy can be easily extruded during the extrusion by using the invention and smoother flow is realized. The invention particularly guarantees that the magnesium alloy that left in the die can be smoothly drawn from the diversion mould by beating.
Description
technical field [0001] The invention relates to a die for extruding a magnesium alloy pipe, in particular to a die for extruding a magnesium alloy pipe without cleaning after extrusion. It belongs to the technical field of mold design. Background technique [0002] Magnesium alloy is currently the lightest metal structure material and has been widely used in aviation, aerospace, automobile and electronics industries. Wrought magnesium alloy has become an important direction for the development of the world's magnesium industry. Its main pressure processing methods include extrusion, forging, rolling, drawing and stamping, etc. In particular, extruded products have a wide variety of products and are more widely used. [0003] At present, the extrusion of magnesium alloy pipes basically follows the extrusion equipment and dies of aluminum alloy profiles. The other end is extruded in the die hole of the shaped die to obtain an extruded product. Compared with magnesium alloy,...
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IPC IPC(8): B21C25/02
Inventor 彭建潘复生尚守亮王中国
Owner CHONGQING UNIV