Material of polyethylene in super high molecular weight for obstruction guard of highway, and fabricating method

A technology of ultra-high molecular weight and manufacturing method, which is applied in the field of anti-collision highway guardrail materials and its manufacturing field, can solve the problems of reduced toughness of products, easy stress concentration of products, economical pressure, etc., and achieves large elastic-plastic deformation area and deformation amount. , long deformation relaxation time, good safety effect
CN1958274AInactive Publication Date: 2007-05-09肖久梅 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
肖久梅
Publication Date
2007-05-09
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

An anticollision protecting fence material for highway is prepared from ultrahigh molecular weight polyethene (UHMWPE) through pre-swelling, dissolving and pugging in dual-screw extruder, extruding out for shaping, and stretching for strengthening. It has high longitudinal tension strength (100-180 MPa) and large longitudinal elongation rate at break (50-350%).
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Description

technical field

[0001] The invention relates to the technical field of road guardrails, in particular to an anti-collision road guardrail material and a manufacturing method thereof. Background technique

[0002] The guardrails installed on both sides of the roadbed and the central isolation belt have the protective effect of preventing high-speed vehicles that deviate from the normal direction of travel from rushing out of the road, reducing impact damage to vehicles and occupants, and redirecting vehicles that deviate from the road direction.

[0003] Modern high-speed road guardrails have two relatively contradictory requirements. One is that the guardrail material has a sufficiently high tensile strength in the longitudinal or road direction and relatively small deformation to prevent the vehicle from deviating too much from the normal track; When the guardrail material hits, the guardrail material can undergo relatively large elastic-plastic deformation to absorb the im...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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