Condom test piece tearing force and elongation at break tester PLC operating system control a set of Shanghai Chengwei

Tester for breaking force and elongation at break of condom test piece CW-Z169 1.
The tester's execution standard meets the testing requirements of Appendix J of GB7544-2009 2.
The technical parameters of the tester and the preparations before the test 1.
Test size: 70* 20MM; 2.
Pulling force range: (0-200) N; 3.
Constant speed range: 0-1000mm/min, the factory setting is 500mm/min, and customers can choose different speeds according to their own requirements to meet customer requirements; 4.
Pulling force Limited stroke: 0-1200mm can be set arbitrarily 5, tension sensor accuracy: accuracy ± 1%, repeatability ± 1%, reversibility 1.
5%, machine resolution 0.
5%, zero position ± 16, color 7-inch touch screen control, man-machine Integrated; 7, a set of PLC operating system control; 8, a set of medical device testing software; 9, pressure sensor pressure range: 0-30KPA and optional according to requirements; 10, a set of fixtures; 11, shell Q235 material made of paint treatment , no rust; 12, station material sampling AL surface anodizing treatment; 13, foot sampling stainless steel, good stability, adjustable level function; 16, USB test software socket, read data; 17, embedded micro printer One set; 3.
Instrument 1 cutter, with two parallel blades, the indentation width of the two blades on a suitable backing plate is (20+0.
1) mm, and the length of each blade is not less than 70 mm
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2 The tensile testing machine can run at a substantially constant rate and meet the following requirements: a) It can balance the stress in the sample, that is, a roller rotates at a frequency of about 7r/min, or use a The material lubricates the cylindrical surfaces of both rollers
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A suitable lubricant is a silicone oil with a viscosity of 2x10-m·s-(200cSt)
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b) It can measure the breaking force in the range of 0N~200N
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Maximum allowable values: accuracy ± 1%, repeatability 1%, reversibility 1.
5%, machine resolution 0.
5%, zero position ± 1
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c) The separation speed of the roller shaft (500±50) mm/mind) There is a device that can manually or fully automatically record the moving distance and force between the two rollers during the test process
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For more information on rubber and plastics test devices see ISO 5893 [1] IV.
Specimen preparation 1 Squeeze the condom inside the package from the tear opening, tear the package and remove the condom
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Under no circumstances should scissors or sharp instruments be used to open the package
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2 Unfold the condom, making sure not to overstretch the condom in any direction
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3 In order to prevent sticking and cut the sample well, add a powder absorbent, such as talc, to the condom, or use an isopropyl alcohol suspension containing 2% talc to remove the lubricant on the condom, and then use Air dry
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4.
Lay the condom flat and its length direction is perpendicular to the cutting edge of the cutter (J21)
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Within 80mm from the open end of the condom, the two sides are parallel and there is no texture, and one impact cut the test piece
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If the two sides are not parallel or there is a pattern within 80mm from the open end, cut the test piece from the place adjacent to the two sides that is parallel and has no pattern
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If there is no place where both sides are parallel and without pattern, cut the test piece from the place 80mm away from the open end
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5.
Above and measure the distance between the two folded sides, each sample should be checked before the test to ensure that there are no nicks or other edge defects that cause bad test results
.