Glass fiber reinforced polypropylene composite pipe, production line and production method of glass fiber reinforced polypropylene composite pipe
A technology of polypropylene pipe and polypropylene, which is applied in the direction of coating, etc., can solve the problems of slow cooling speed of cooling mechanism, unstable pipe cooling temperature, negative influence of pipe shaping effect, etc., so as to reduce the number of use and improve the continuity of production steps , the effect of shortening the production cycle
Pending Publication Date: 2021-06-29
ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECH
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Problems solved by technology
However, due to the limitation of the structure of the die mouth of the pipe mold, the cooling speed of the cooling mechanism will be slow, or the cooling temperature of the pipe is not constant, which will have a negative impact on the shaping effect of the pipe.
Method used
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[0031] The present invention will be further described in detail below in conjunction with specific embodiments.
[0032]In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms, etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only considered for convenience The present invention is described and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.
[0033] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technic...
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The invention discloses a glass fiber reinforced polypropylene composite pipe, a production line and a production method of the glass fiber reinforced polypropylene composite pipe. The glass fiber reinforced polypropylene composite pipe comprises an inner layer polypropylene pipe layer, a middle layer reinforcing layer and an outer layer polypropylene pipe layer. The production line comprises an inner pipe forming machine, a vacuum shaping box, an inner pipe traction machine, a heating box, a hot flux extruder, a weaving winding machine, an outer pipe extruder, a composite pipe cooling water tank, a composite pipe traction machine and a gantry winding machine which are arranged in series. The inner pipe forming machine comprises a main machine and an inner pipe forming mold arranged at a discharging port of the main machine. The inner pipe forming mold comprises a mold core, an outer mold, a mold cavity, a material distribution cavity and a cooling cavity formed in the mold core, and a cooling mechanism is arranged in the cooling cavity. According to the polypropylene composite pipe, the bonding strength between the layers is good, the continuity of the production line is good, the cooling and shaping efficiency is high, and the use performance is good.
Description
technical field [0001] The invention relates to the technical field of production of composite plastic pipes, in particular to a glass fiber reinforced polypropylene composite pipe, a production line and a production method thereof. Background technique [0002] Compared with random copolymer polypropylene pipe, polypropylene glass fiber reinforced composite pipe has higher temperature resistance, lower expansion coefficient, stronger pressure resistance, longer service life, corrosion resistance and impact resistance. Excellent new type of pipe; it is an ideal material for solar energy, thermal energy circulation system, heating system, sewage treatment pipeline and chemical fluid flow channel. Since polypropylene is a non-polar material, adhesive glue cannot be applied between the glass fiber layer and the glass fiber layer during production. In order to ensure the bonding strength between the glass fiber reinforced material and the polypropylene inner tube and outer tube,...
Claims
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Login to View More IPC IPC(8): B29C48/00B29C48/151B29C48/32B29C48/355B29C48/79B29C48/88B29C53/56B29C70/06B29C70/28B29C70/54
CPCB29C53/566B29C70/06B29C70/28B29C70/54B29C48/001B29C48/151B29C48/32B29C48/355B29C48/79B29C48/9115
Inventor 牟斌吴文强胡新明龙玉平王庆曹学成
Owner ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECH