Integrated polyurethane synchronous belt and preparation method thereof

A polyurethane and synchronous belt technology, applied in chemical instruments and methods, transmission belts, mechanical equipment, etc., can solve problems such as low production efficiency, complicated preparation process, and potential safety hazards, and achieve the effect of enhancing mechanical properties

Active Publication Date: 2017-10-10
WINSIN MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process is complicated, the production efficiency is low, and toxic toluene and other materials are used for cleaning and activation, so there are certain potential safety hazards

Method used

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  • Integrated polyurethane synchronous belt and preparation method thereof

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Embodiment 1

[0020] Such as figure 1 As shown, the present invention is an integrated polyurethane synchronous belt, which includes a synchronous belt main body formed by an integrally formed hard polyurethane tooth layer 1 and a soft polyurethane base layer 2, and the hardness (Shore) of the rigid polyurethane is 91- 93A, the hardness (Shore) of soft polyurethane is 55-60A. The main body of the synchronous belt is provided with a metal skeleton 3 . In this embodiment, the metal skeleton 3 is arranged in the hard polyurethane tooth layer 1 . The metal skeleton includes several metal wires located on the same plane, the several metal wires are parallel to each other with intervals between them, and the metal wires are 1mm steel wires.

[0021] The following is the preparation method of the one-piece polyurethane synchronous belt. It is to put a metal skeleton in a tooth-shaped metal mold, pour a layer of high-hardness polyurethane for forming a hard polyurethane tooth layer, and wait unti...

Embodiment 2

[0023] In this embodiment, the metal skeleton is composed of at least one layer of metal mesh, and the metal mesh is braided by metal wires, and the metal wires are 2mm steel wires.

[0024] The following is the preparation method of the one-piece polyurethane synchronous belt. It is to put a metal skeleton in a tooth-shaped metal mold, pour a layer of high-hardness polyurethane for forming a hard polyurethane tooth layer, and wait until the layer of polyurethane is in a gel state Finally, another soft polyurethane used to form a soft polyurethane base layer is poured in. After the soft polyurethane is in a gel state, it is pressurized and vulcanized. After 35 minutes, the mold is demoulded, and then the secondary vulcanization is carried out in an oven at 120 ° C for 11 hours. .

[0025] Compared with the prior art, the present invention adopts pouring a layer of polyurethane with higher hardness in the tooth-shaped metal mold, and pouring another soft polyurethane with hardn...

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Abstract

The invention discloses an integrated polyurethane synchronous belt. The integrated polyurethane synchronous belt is characterized by comprising an integrally-formed synchronous belt body composed of a hard polyurethane tooth layer and a soft polyurethane base layer, the shore hardness of hard polyurethane is 91-93 A, and the shore hardness of soft polyurethane is 55-60 A. The integrated polyurethane synchronous belt is simple in manufacturing process, safe in production and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of synchronous belts, in particular to an integrated polyurethane synchronous belt and a preparation method thereof. Background technique [0002] The existing polyurethane timing belt is generally composed of two layers, the tooth part is made of polyurethane with high hardness, and the contact surface is made of styrene-butadiene rubber. Due to the different physical properties of the two layers of materials, a series of complicated treatment processes are required: first, roughen the polyurethane layer - clean it - apply the corresponding activator for treatment - apply the corresponding adhesive after activation. Brush the styrene-butadiene rubber - clean it - brush the corresponding activation treatment agent for activation - brush the corresponding adhesive after activation - pressurize and bond the polyurethane layer and the styrene-butadiene rubber layer with a flat vulcanizing machine. Its preparat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G1/28B32B27/40B32B27/04B32B3/30B32B37/15
CPCB32B3/30B32B27/04B32B27/40B32B37/15F16G1/28
Inventor 袁军彭威周军
Owner WINSIN MATERIALS INC
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