1. Core information: In a broad sense, a testing machine is an instrument used to verify the quality and performance of products or materials.
2. Specific details: Introduce common types and principles, such as bending, torsion, fatigue, and other testing machines; classification methods include by application and control mode, etc.; selection guidelines involve range, accuracy, and other choices; maintenance and care include oil source, control system, and machine body maintenance. Overview
In a broad sense, a testing machine is an instrument used to verify the quality or performance of a product or material before it is put into use, in accordance with design requirements. From this definition, it can be seen that any instrument used to verify quality or performance can be called a testing machine. The products of testing machines are constantly innovating, improving and perfecting, and can adapt to the detection of various properties of materials. Testing machines are mainly used to measure the physical properties of materials or products, such as the yield strength, tensile strength, and impact toughness of steel, etc. Instruments used to measure the chemical properties of materials, that is, chemical composition, are generally called analyzers, not testing machines.
Application
The testing machine is a precision testing instrument used to determine the mechanical properties, technological properties, internal defects of metallic and non-metallic materials, physical properties, mechanical parts, engineering structures, etc. under various conditions and environments, as well as to check the dynamic imbalance of rotating parts.
Classification
Types of testing machines: There are many types of testing machines, and they can be classified in various ways. According to the traditional classification method, they can be divided into five major categories: metal material testing machines, non-metal material testing machines, dynamic balancing testing machines, force gauges, tensile testing machines, vulcanizing machines and non-destructive testing machines.
The classification of material testing machines: There are many types and models of material testing machines. Their loading methods, structural features, force measurement principles, and application scopes are all different.
Classified by application: testing machines for mechanical property determination and testing machines for process testing.
Classified by loading methods: static load testing machines (static) and dynamic load testing machines (dynamic). Static testing machines mainly include: universal testing machines, pressure testing machines, tensile testing machines, torsion testing machines, and creep testing machines.
Dynamic testing machines mainly include: fatigue testing machines: universal dynamic and static testing machines, impact testing machines, etc.
Classified by force measurement methods: mechanical force measurement testing machines and force gauges, tensile testing machines, and force measurement testing machines for vulcanizing instruments.
By control mode classification: manual control and force gauge, tensile testing machine, vulcanizing meter.
Classified by the position of the oil cylinder: oil cylinder top-mounted and oil cylinder bottom-mounted testing machines.