Tensile testing machine is suitable for tensile test of rubber, plastics, textiles, waterproof materials, wire and cable, net rope, metal wire, metal rods, plates, and other materials. Adding attachments can be used for compression, bending and other tests. With the digital display of test force, the test speed is continuously adjustable, the sample is automatically shut down, the peak hold and other functions.
Select the tension machine should pay attention to what issues :
First, the tension machine should first consider the need to test the material pull range . The difference in the pull range determines the difference in the sensors used, which also determines the structure of the puller, but this has little effect on the price (except for the gate type). For general flexible packaging manufacturers, a tension range of 100 Newton is sufficient. Therefore, it is also decided to use a single arm type. The structure corresponding to a single-arm type is a portal structure, which is adapted to a relatively large pulling force, such as one ton or more. Therefore, soft packaging manufacturers basically do not need.
Second, the Rally machine test when purchasing the problem . According to the performance and requirements of the flexible packaging film, the stroke can be 600-800mm. Materials with an elongation of more than 1000% can be used with a stroke of 1000 or 1200mm.
Third, when the Rally machine purchase standard configuration problems . There are three basic types of intelligent configuration: host computer, microcomputer, and printer. If the microcomputer is powerful, it can be directly printed. In addition can also be equipped with ordinary computers. With a computer, you can perform complex data analysis, such as data editing, local magnification, adjustable report formats, and statistical analysis of grouped patterns. If equipped with a computer, the manufacturer should be added to the corresponding control system.
Fourth, the output results when the Rally machine is selected . The output of the test results can be arbitrarily set: maximum force value, elongation, tensile strength, constant force elongation, constant tensile force, yield strength, elastic modulus, and maximum test force. This can be said to be the most comprehensive result of the output of the microcomputer. Some foreign manufacturers' products can generally output these 8 items. Some domestic manufacturers can output 5-6 items, and some manufacturers can only output the maximum force value, average value, and minimum value.
Fifth, Rally machine can be done on the experimental project . The flexible packaging requires a multi-purpose pull machine, that is, on the basis of different fixtures, it can perform tensile, compression, bending, tearing, shearing, 180 degree peeling, and 90 degree peel test. There are some high-grade tensile machines on the market that, in addition to the above items, can also test the friction coefficient because of their high sensor accuracy (some of which reach 250,000th of one million).
Sixth, when the Rally machine is selected, the main configuration of the product machinery . Transmission, screw drive and rack drive, the former is expensive, used for high precision, test repeatability is high; the latter is cheap, used for low accuracy, test repeatability is low. Screws have a decisive effect on the accuracy of tension measurements. General ball screw, trapezoidal screw, general screw. Among them, the accuracy of the ball screw is the highest, but the performance of the ball screw depends on the operation of the computer servo system to play, the entire package price is also relatively expensive. The general screw and trapezoidal screw can be used to achieve the required precision of the flexible packaging, ie 0.5-1% accuracy. Transmission, gear transmission and chain drive, the former is expensive, used for high precision; the latter is cheap, used for low precision. Sensors, the main cost lies in life, photoelectric induction is one of the more advanced technology, generally available more than 100,000 times, import and domestic joint venture manufacturers can achieve better technology is Shanghai Trust Instrument Co., Ltd. VII, Rally machine test speed when purchasing . Some of the equipment on the market are in the range of 10~500mm/min, and some are in the range of 0.001~500mm/min. The former generally use common speed control systems, which have lower costs and have a rougher influence on accuracy. The latter use servo systems, which are expensive and have high precision for flexible packaging. Enterprises, the choice of servo system, the speed range of 1 ~ 500mm/min is enough, this will not affect the accuracy, the price is within a reasonable range.
Eight, Rally machine measurement accuracy . Accuracy problems include force measurement accuracy, speed accuracy, deformation accuracy, and displacement accuracy. These precision values ​​can reach up to plus or minus 0.5. But for general manufacturers, achieving 1% accuracy is sufficient.
Select the tension machine should pay attention to what issues :
First, the tension machine should first consider the need to test the material pull range . The difference in the pull range determines the difference in the sensors used, which also determines the structure of the puller, but this has little effect on the price (except for the gate type). For general flexible packaging manufacturers, a tension range of 100 Newton is sufficient. Therefore, it is also decided to use a single arm type. The structure corresponding to a single-arm type is a portal structure, which is adapted to a relatively large pulling force, such as one ton or more. Therefore, soft packaging manufacturers basically do not need.
Second, the Rally machine test when purchasing the problem . According to the performance and requirements of the flexible packaging film, the stroke can be 600-800mm. Materials with an elongation of more than 1000% can be used with a stroke of 1000 or 1200mm.
Third, when the Rally machine purchase standard configuration problems . There are three basic types of intelligent configuration: host computer, microcomputer, and printer. If the microcomputer is powerful, it can be directly printed. In addition can also be equipped with ordinary computers. With a computer, you can perform complex data analysis, such as data editing, local magnification, adjustable report formats, and statistical analysis of grouped patterns. If equipped with a computer, the manufacturer should be added to the corresponding control system.
Fourth, the output results when the Rally machine is selected . The output of the test results can be arbitrarily set: maximum force value, elongation, tensile strength, constant force elongation, constant tensile force, yield strength, elastic modulus, and maximum test force. This can be said to be the most comprehensive result of the output of the microcomputer. Some foreign manufacturers' products can generally output these 8 items. Some domestic manufacturers can output 5-6 items, and some manufacturers can only output the maximum force value, average value, and minimum value.
Fifth, Rally machine can be done on the experimental project . The flexible packaging requires a multi-purpose pull machine, that is, on the basis of different fixtures, it can perform tensile, compression, bending, tearing, shearing, 180 degree peeling, and 90 degree peel test. There are some high-grade tensile machines on the market that, in addition to the above items, can also test the friction coefficient because of their high sensor accuracy (some of which reach 250,000th of one million).
Sixth, when the Rally machine is selected, the main configuration of the product machinery . Transmission, screw drive and rack drive, the former is expensive, used for high precision, test repeatability is high; the latter is cheap, used for low accuracy, test repeatability is low. Screws have a decisive effect on the accuracy of tension measurements. General ball screw, trapezoidal screw, general screw. Among them, the accuracy of the ball screw is the highest, but the performance of the ball screw depends on the operation of the computer servo system to play, the entire package price is also relatively expensive. The general screw and trapezoidal screw can be used to achieve the required precision of the flexible packaging, ie 0.5-1% accuracy. Transmission, gear transmission and chain drive, the former is expensive, used for high precision; the latter is cheap, used for low precision. Sensors, the main cost lies in life, photoelectric induction is one of the more advanced technology, generally available more than 100,000 times, import and domestic joint venture manufacturers can achieve better technology is Shanghai Trust Instrument Co., Ltd. VII, Rally machine test speed when purchasing . Some of the equipment on the market are in the range of 10~500mm/min, and some are in the range of 0.001~500mm/min. The former generally use common speed control systems, which have lower costs and have a rougher influence on accuracy. The latter use servo systems, which are expensive and have high precision for flexible packaging. Enterprises, the choice of servo system, the speed range of 1 ~ 500mm/min is enough, this will not affect the accuracy, the price is within a reasonable range.
Eight, Rally machine measurement accuracy . Accuracy problems include force measurement accuracy, speed accuracy, deformation accuracy, and displacement accuracy. These precision values ​​can reach up to plus or minus 0.5. But for general manufacturers, achieving 1% accuracy is sufficient.
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