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Tensile strength tester purchase and main configuration

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Update time : 2021-05-12 13:53:20
Tensile strength tester purchase and main configuration
 
Tensile testing machine is also known as universal material testing machine. The universal Tensile strength tester is a mechanical afterburning testing machine used for static load, tensile, compression, bending, shear, tearing, peeling and other mechanical performance tests of instruments and equipment for various materials. How much do you know? The following editor will give you a detailed introduction to the purchase and main configuration of the Tensile strength tester.
 
1. The purchase of Tensile strength tester
Test material tension range
The different pulling force range determines the different sensors used, which also determines the structure of the pulling machine, but this item has little effect on the price (except for the door type). For general flexible packaging manufacturers, a tensile force of 1,000 kg is sufficient. Therefore, it was decided to use a single-arm type. The structure corresponding to the single-arm type is the door type structure, which is suitable for relatively large pulling forces, such as one ton or more. Therefore, flexible packaging manufacturers basically do not need it.
 
Test stroke
According to the performance and requirements of the flexible packaging film to be tested, the stroke is only 600-800mm. If the elongation of the material exceeds 1000%, you can choose a stroke of 1000 or 1200mm.
 
Standard configuration issues
There are three basic configurations of intelligence: main loading frame, microcomputer, and printer. If the microcomputer is powerful, you can print directly. It can also be equipped with an ordinary computer. With a computer, you can perform complex data analysis, such as data editing, partial enlargement, adjustable report format, and group-style statistical analysis.
 
Output result
The test output results can be arbitrarily set: maximum force value, elongation rate, tensile strength, constant elongation, constant elongation force value, yield strength, elastic modulus, maximum test force 8 items. This can be said to be the most comprehensive result output during microcomputer operation.
 
On the experimental items available.
Flexible packaging requires a multi-purpose tensile machine, that is, on the basis of equipped with different clamps, it can do tensile, compression, bending, tearing, shearing, 180-degree peeling, and 90-degree peeling tests.
 
In addition to the above items, there are some high-end tensile machines on the market. Because of their high sensor accuracy (some up to one in 200,000), they can also test the coefficient of friction.
 
Second, the main configuration of the Tensile strength tester
There are lead screw drive and rack drive. The former is expensive and is used for high precision and has high test repeatability; the latter is cheap and is used for low precision and has low test repeatability.
 
The lead screw plays a decisive role in the measurement of tensile force accuracy. Generally, there are ball screws, trapezoidal screws, and general screws. Among them, the ball screw has the highest accuracy, but its performance depends on the operation of the computer servo system, and the whole set is more expensive. The precision required by flexible packaging can be achieved by using general lead screws and trapezoidal lead screws, that is, 0.5-1% accuracy
 
Transmission includes gear transmission and chain transmission. The former is expensive and is used for high precision; the latter is cheap and is used for low precision.
 
The main cost of the sensor lies in the life span. Photoelectric sensing is one of the more advanced technologies, which can generally be used for more than 100,000 times, but the sensor used by Jinan Wangtebe Instrument Equipment Co., Ltd. is from the United States, with high accuracy, and generally can be used for more than 150,000 times
 
Test speed.
Some of the equipment on the market is 10~500 mm/min, and some are 0.01~500 mm/min. The former generally uses ordinary speed control systems, which are lower in cost and roughness affects the accuracy; the latter uses a servo system, which is expensive and has high accuracy. For flexible packaging companies, it is sufficient to use a servo system with a speed range of 1~500mm/min, so that it does not affect the accuracy and the price is within a reasonable range.
 
measurement accuracy. Accuracy issues include force measurement accuracy, speed accuracy, deformation accuracy, and displacement accuracy. These accuracy values ​​can reach up to plus or minus 0.5. But for general manufacturers, 1% accuracy is sufficient. In addition, the force resolution can almost reach 1/250 thousand.
 
The above is the purchase and main configuration of the Tensile strength tester  shared by us, I hope it can help everyone!
 
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