Fiber reinforced plastic cylinder with interior spiral reinforcing bar and method for manufacturing the same

A fiber-reinforced plastic and internal spiral technology, applied in the direction of the barrel, can solve the problems of complex molding process, long processing cycle, and micro-cracks in the barrel, and achieve the effect of simple process, high production efficiency, and anti-leakage cost

Active Publication Date: 2006-09-27
HARBIN FRP INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of complex molding process, long processing period, microcracks on the inner surface of the cylinder and the weight of the cylinder after molding, the pres

Method used

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  • Fiber reinforced plastic cylinder with interior spiral reinforcing bar and method for manufacturing the same
  • Fiber reinforced plastic cylinder with interior spiral reinforcing bar and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Specific implementation mode 1: Combination figure 1 This embodiment will be described. In this embodiment, it is made by superimposing the inner layer of the cylinder 1, the outer layer 2 of the cylinder and the inner spiral reinforcement 3. At least one spiral groove is provided on the inner lining 1 of the cylinder, and the inner spiral reinforcement 3 is fixed in the spiral recess. In the groove, the inner spiral rib 3 is at least one third of the length of the cylinder, and the outer layer 2 of the cylinder is fixed on the outer surface of the inner liner 1 and the inner spiral rib 3 of the cylinder.

Example Embodiment

[0017] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the inner diameter of the cylinder is 10mm~400mm, the ratio of the length of the cylinder to the outer diameter is 5~300, and the pitch of the inner spiral rib 3 is greater than twice. The inner diameter of the cylinder; the inner spiral ribs 3 are multiple and run through the length of the cylinder.

Example Embodiment

[0018] Specific embodiment 3: The inner lining layer 1 of the cylinder of this embodiment is made of 40-65% fiber volume content, and the balance is made of resin; the inner spiral ribs 3 and the cylinder outer layer 2 are both made of fiber volume content 50%. ~65%, the balance is made of resin.

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Abstract

The invention relates to a fiber strengthen plastic cylinder with inner screw strength bar. Wherein, the liner layer (1) has at least one screw groove; the strength bar (3) is fixed inside the groove whose length is at least 1/3 of the cylinder length; the outer layer (2) of cylinder is fixed on the outer surface of liner layer (1) and the strength bar (3). The producing method comprises: treating the outer surface of mould; laying and coiling the liner layer (1), cylinder outer layer (2) and the strength bar (3) to be put into solidify furnace to be molded; then treating the outer surface. The invention has short producing time, high efficiency and simple process. And the inventive cylinder has high strength, smooth inner surface without crack, etc.

Description

technical field [0001] The invention relates to a fiber-reinforced plastic cylinder prepared from a resin-based composite material and a method for making the cylinder. Background technique [0002] At present, the existing cylinder body with similar structure is formed by cold metal processing methods such as broaching process or electrolytic processing. The cylinder formed by the above method needs to use special processing equipment, the multiple of the ratio of the length of the cylinder to the outer diameter is small and the process is complicated, and the processing cycle of the product is long. After forming, the inner surface of the cylinder has microcracks and cylinder weight. During the process, special hoisting equipment is required for processing and turnover. Contents of the invention [0003] In order to solve the problems of complex molding process, long processing period, and microcracks on the inner surface of the barrel after forming and the weight of th...

Claims

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Application Information

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IPC IPC(8): F41A21/02F41A21/18
Inventor 林再文匡乃航王明寅董鹏黄力刚侯涤洋陈辉
Owner HARBIN FRP INST
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