What is a testing machine

Overview of the testing machine

1. Definition

1.1 The concept and use of the testing machine The testing machine is used to measure the mechanical properties, process performance, internal defects, and check the dynamic imbalance of rotating parts under various conditions and environments. test instrument. In the process of researching and exploring new materials, new processes, new technologies and new structures, the testing machine is an indispensable important testing instrument. It is widely used in machinery, metallurgy, petroleum, chemical, building materials, construction, aerospace, shipbuilding, transportation, and other industrial departments, as well as related laboratories in universities and research institutes. It plays an important role in effectively using materials, improving processes, improving product quality, reducing costs, and ensuring product safety and reliability.

1.2 Types of testing machines: There are many types of testing machines, and there are many different classification methods. According to the traditional classification method, it can be divided into five categories: metal material testing machine, non-metal material testing machine, dynamic balance testing machine, vibrating table and non-destructive testing machine.

1.2.1 Classification of material testing machines: There are many varieties and models of material testing machines, and their loading methods, structural features, force measurement principles, and application ranges are all different Classification by purpose: testing machine for measuring mechanical properties and testing machine for process testing Classification by loading method: static load testing machine (static) and dynamic load testing machine (dynamic) The static testing machine mainly includes:

●Universal testing machine: hydraulic universal testing machine and electronic universal testing machine

●Pressure testing machine

●Tensile testing machine

●Torsion testing machine

● Creep testing machine The dynamic testing machine mainly includes: fatigue testing machine: dynamic and static universal testing machine, one-way pulsation fatigue testing machine, impact testing machine, etc. Classified by force measurement method: mechanical force testing machine and electronic force testing machine Classified by control method: manual control and microcomputer servo control testing machine Classification according to the position of the oil cylinder: the upper-mounted oil cylinder and the lower-mounted oil cylinder test machine

1.3 Material test

1.3.1 Mechanical properties of materials: The ability of materials to resist deformation or damage under the action of external forces is called the mechanical properties of materials. Including strength, plasticity, elasticity, brittleness, fracture toughness, hardness, etc.

1.3.2. Material test: mechanical performance test, physical test, chemical test.

1.3.3 Material mechanical performance test: tensile, compression, bending, shear, torsion, impact, fatigue, creep, durability, relaxation, wear, hardness and other tests. Tensile test: It is also called tensile test, which is to slowly apply load on both ends of the sample to subject the working part of the sample to axial tension, causing the sample to elongate in the axial direction, generally until it breaks. Through the tensile test, the tensile strength and plastic properties of the material can be measured.

A testing machine, in a broad sense, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use. It can be seen from the definition that all instruments that verify quality or performance can be called Junping testers, but they are sometimes also called testers, testers, tensile machines, test equipment, testers, etc. In the textile industry, it is customary to call it a powerful machine, which is actually a tensile testing machine. The testing machine is mainly used to measure the physical properties of materials or products, such as the yield strength and tensile strength of steel, the hydrostatic time determination of pipes, and the fatigue life of doors and windows. The one used to measure the chemical properties of materials is also the chemical composition, which is generally called an analyzer, not a testing machine.

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