Hardware fitting for detecting mechanical property of bar material and using method thereof

Abstract

The invention discloses a hardware fitting for detecting mechanical property of a bar material and a using method thereof. The hardware fitting comprises a base, a pressure block, a core rod and an internal conical thread nut, wherein the upper end of the core rod is in threaded connection with the base; the pressure block is clamped together with a clamping groove on the base through a chuck on the upper part of the pressure block; the inner side of the pressure block is a concave surface and corresponds to a convex surface clamping region on the outer side of the core rod; an inner layer liner and an outer layer liner are arranged between the pressure block and the convex surface clamping region which corresponds to the pressure block; a plurality of pressure blocks are matched to form a hollow inverted conical platform body; and the lower part of the inverted conical platform body is provided with an external conical thread which is threaded with the internal conical thread nut. The hardware fitting for detecting mechanical property of the bar material and the using method thereof, disclosed by the invention, are used for detecting the mechanical property of the bar material. Tests prove that the hardware fitting has high operability, and is easy and convenient to manufacture. A test piece obtained by using the hardware fitting has reliable mechanical property data.

Description

technical field [0001] The invention relates to a metal tool for testing the mechanical properties of rods and a method for using the same. Background technique [0002] The fiber industry is in an upward cycle, and the market prospect is broad. Epoxy resin / carbon fiber composite materials are an important branch of reinforced composite materials. With the deepening of the understanding of the performance of carbon fiber materials, the application of carbon fiber materials has continued to deepen and widen. Due to its own characteristics, carbon fiber composite materials are more difficult to master than metal materials in terms of product quality consistency. Carbon fiber composite materials are used in the field of power transmission. In addition to the mechanical, electrical and physical properties of the core material and the entire wire, it is also necessary to consider its construction process performance, environmental life and other indicators. The establishment of ...

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Problems solved by technology

Its own plastic deformation ability is negligible, which leads to the characteristics of large bending radius and poor shear resistance of the profile, which greatly limits the application and promotion of materials.

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