I don't understand how the testing machine distinguishes the quality of the testing machine
I don't understand how the testing machine distinguishes the quality of the testing machine
1 The appearance of the testing machine should not have irregular bulges, depressions, roughness and other damage. 2 The edges of the separating surface of the parts and components of the testing machine should be uniformly symmetrical, and there should be no obvious misalignment. The door and cover should be easy to load and unload, and the gap between the separating surface should not exceed the rules in the table below. the largest size gap ≤500mm 1 >500-1000mm 2 >1000mm 3 3 The countersunk screw should not protrude from the surface of the part, and there should be no obvious eccentricity between the head and the counterbore. The fixing pin should protrude from the surface of the part, and the exposed shaft end should protrude from the end face of the receiving part, and the protruding value is approximately the chamfer value. The end of the bolt should protrude slightly from the nut. 4 The machined surface of the parts of the testing machine shall be free of rust, burrs, bruises, scratches and other defects. 5 The color of the paint of the testing machine should be beautiful and generous, the color should be mild, and the color registration should be harmonious. The boundaries of different colors should be clear and not mutually pollute. 6 The paint and putty of the testing machine should have enough strength to resist oil and corrosion, and there should be no peeling and falling off. 7 The unprocessed appearance of all parts and accessories of the testing machine shall be primed and painted. Before primer painting, rust, sand, oil and other dirt should be carefully removed. The painted surface should be intact, lubricated, even and different in color, and there should be no spots, wrinkles, bubbles, and adhesions. 8 The appearance of electroplated parts should be spotless, and the coating should be even without peeling. 9 The outer color of the blackened parts is uniform, and there is no spot, rust, etc. 10 The various signs on the testing machine should be clear and durable. The nameplate should be fixed in an obvious place. The fixing of the sign should be in the correct position, flat and strong, and not inclined. It is allowed to use artistic factory logos or cast clear Chinese characters on the testing machine.
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Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, 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.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
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