Plastic hardness test
ISO 2039-1, ISO 2039-2, ISO 7619-1, ISO 868, ASTM D2240, ASTM D785, ISO 19278Application of a variety of plastic industryHardness testMethods, each method corresponding to different measuring objects.Can be a nanoscale, micro level and macro level.
Shaw hardness (analog display) ISO 7619-1, ISO 868, ASTM D2240
- In accordance with theISO 7619-1, ISO 868 and ASTM D2240Standards for shaw hardness tester can simply use a portable hardness tester.This method is widely used in quality control, the macroscopical method.Recommended tests in the laboratory is equipped with a test rig using instruments.
- This test method for measuring the pressure head pressure into the indentation depth of the material.The pressure head spring loaded a set parameters.The greater the hardness of the material being tested, indentation depth is smaller;But the greater the pressure head load.Shaw hardness A load test for 10 N, shaw hardness test load of 50 N D.
- Because of the pressure head form and spring characteristics, different shaw hardness scale is established.One of the most famous scale is A and shaw shaw hardness hardness D.Other ruler, such as: shaw hardness B, C, 0, 0, 000 and D0, for some special applications.Its application range from soft rubber (A) shaw hardness to thermoplastic (shaw hardness D).
- Digital shaw hardness tester
ZwickRoell offers a variety of shaw hardness tester, with simulation display or digital display and PC connection option.
The ball indentation hardness, ISO 2039-1
- The ball indentation hardness methodISO 2039-1Widely used in European laboratory.Will be a 5 mm diameter of the spherical head with the test load of a continuous pressure into the plastic sample.Under certain load of the indentation depth is used to measure the hardness value.Standard defines the test load range, to ensure that the indentation depth is limited between 0.15 mm to 0.35 mm.
- High and deep indentation test load allowed in a large measure sample surface, so that you can get more accurate measurement data average.This method can measure the plastic packing, also can be measured without packing plastic.
Rockwell hardness tester, ASTM D785 ISO 2039-2
- ISO 2039-2andASTM D785Defined in a variety of plastic test rockwell hardness scale.
- With the ball indentation hardness (under the load measuring indentation depth), compared to rockwell hardness method of indentation depth under the setting of pre-load measurement.Rockwell hardness scale there are a lot of pressure head to choose from.
According to ISO 19278 (draft) instrument hardness test
- Continuously record the whole process of force - pressure into the hardness test method are instrument hardness test method.
- In addition to the individual hardness value of multipoint data, these methods generate complex curve, the characterization of the material characteristics of other interesting.Instrumentation record of hardness measurement is an extension of the traditional hardness measurements.
- General instrumentation hardness measurement method can be used for nanoscale, micro level and macro test.Head can have different geometry, for example, spherical, conical, four sprayed (vickers hardness) or three sprayed (Berkovic).
- The fine material and structure from several nanometers to microns, can use the micro hardness test method for measuring.Mixing or enhance polymer and polymer blend macro method is used to test, implies the use of a higher load.This prevents the behavior or fibre or packing dominate the hardness data caused by numerical dispersion is too strong.
- This method has been written to the standard ISO 14577-1 in the metal industry.Plastics industry was also proposedThe ISO 19278 standard draft.
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ZHU250CL universal hardness tester
Test scope is very broad, from 0.5 kg to 250 kg, can adapt according to ISO 6507, ISO 6508 and ISO 6506 standard of vickers and knoop, rockwell and brinell test.Covering the hardness of applications are as follows: vickers ISO 6507 and ASTM E384, knoop ISO 4545 and ASTM E384, rockwell ISO 6508 and ASTM E18, brinell IS0 6506 and ASTM E10
- ZwickRoell of rockwell hardness tester is a special pressure head bracket, used in hard to reach the location of the hardness test.
- ZHR product line of the hardness tester is applicable to the following methods:
- Conventional method of rockwell hardness (ZHR4150), carried out in accordance with the ISO 6508 and ASTM E18, pre-load: 10 kg.Test load: 60, 100, 150 kg scale: A B C D E F G H K L M P R S V
- Surface rockwell hardness method (ZHR4045), carried out in accordance with the ISO 6508 and ASTM E18, pre-load: 3 kg.Test load: 15, 30, 45 kg scale: N T W X Y
- General rockwell hardness method (ZHR8150), in accordance with ISO 6508 and ASTM E18, pre-load: 3, 10 kg.Test load: 15, 30, 45, 60, 100, 150 kg scale: A B C D E F G H K L M N P R S Y V W X Y
- For plastic rockwell hardness method (LKP), in accordance with ISO 2039-2 and ASTM D785 (kathi Jones from A&B)
