Plastic and rubber industry use Universal Material Testing Machine/Tensile Strength Testing Machine.What is the test item of Universal Material Testing Machine?Today,Dongguan Right Testing Machine engineer will answer this question.

First of all, choose a suitable Universal Material Testing Machine/Tensile Strength Testing Machine. General engineering plastics can choose about 500N Universal Material Testing Machine, there are conditions that can choose a little better with a non-metal extensometer, (two-point extension) dedicated to measuring the elongation . Then we must choose a good pair of tensile fixture, our company is generally equipped with wedge-shaped fixture,If bending test must use three points bending fixture. Speed requirements are also high, compression with 5MM / min, the use of computer servo control system, to meet the 5.5-500MM / min speed.

Universal Material Testing Machine/Tensile Strength Testing Machine test items have tensile force, tensile stress, tensile strength, breaking strength,

tensile strength = ultimate load / cross-sectional area elongation,

tear strength = Ultimate load / thickness

elongation = extension value / gauge length * 100

 3 point bending test formula R = (3F * L) / (2b *h*h) = 100%,  F-Breaking Load, L-Span, b-Width, h-Thickness

The Young's modulus is defined as the ratio of the normal stress component of the same phase to the normal strain. To determine the coefficient of stiffness of the material, the higher the value, the stronger the material.
Proportional limit: the load in a certain range and elongation can be maintained proportional to the relationship between the maximum stress is the limit. Elastic limit: the material can withstand without the permanent deformation of the maximum stress.
Elastic deformation: remove the load, the deformation of the material completely disappeared.
Permanent deformation: remove the load, the material remains deformed.
Yield point: When the material is stretched, the deformation will increase quickly and the stress will not change, this point is the yield point. Yield point is divided into upper and lower yield point, the yield point above the general yield point.
Yield: the load exceeds the proportional limit and elongation is no longer proportional to the load will suddenly drop, and then over time, up and down, a large change in elongation, this phenomenon is called yield.
Yield strength: when tensile testing, the permanent elongation to reach a specified value of the load, divided by the original Department of the original cross-sectional area, the resulting quotient. Yield strength = yield load / cross-sectional area.

This series of universal material testing machine is widely used with various types of metal, metal, rubber, footwear, leather, clothing, textiles, insulators, wire and cable, terminals ... ... and other materials, testing its tensile, tearing, Shear, bending, compression, bending, shear, three-point bending, three-point bending, ... ... and other properties of the test performance.