1、 The origin of rubber hardness tester:
The rubber hardness tester was originally developed by an American company calledShore The company produces it, and the brand is also called Shore , So far, it has been continuously used Shore, It is different from the Shore hardness of metals and has a different definition
Generally referred to as Shore hardness tester
Secondly,Classification of rubber softness and hardness:
Example: Generally, the hardness of rubber isA Type The most common is its standard basis ASTM D 2240, ISO 7619 / 868, JIS K 6253As a foundation
before JIS / DIN It is an independent standard that was revised approximately 15 years ago and meets the requirements ISO standard
The brands we represent
TECLOCK GS-706N A Type (JIS old system) GS-719N A Type (JIS new system), GS-703 C type ( JIS 舊制 )
GS-702N D-type ( JIS Old system) GS-720N D type
3、 How to choose a rubber hardness tester:
Generally, rubber such as erasers and tires are mostly A, TECLOCK GS-706N, GS-709N, GS-719N ASKER A Type, the test piece requires a thickness of 6 mm Above, 12 from the edge of the test piece mm
A typeTest less than 20Degree, Belonging to soft material Should choose to useC type . as TECLOCK GS-701 N, ASKER C Type, test pieceRequire a thickness of at least 10mm15 degrees from the edge of the test piece mm
A typeTesting is greater than 90Degree, Belonging to hard material Should choose to useD type as TECLOCK GS-702N, GS-720N, ASKER D Type test pieceRequired thickness 6 mm Above, 12 from the edge of the test piece mm
There are many types of soft materials
C typeUsed for foaming rubber such as EVA Beach sole, popular running shoe insole nowadays
C typeTest less than 20Degree, belong to Sponge foam Should choose to useF Type as TECLOCK GS-744G, ASKER F Type test pieceRequire a thickness of at least 30mm
Sponge foam, There are too many types of this substance
Like sponge for chairs and sofas useF
E Typealso Foam rubber is likeC TYPEHowever, based onISOStandard, if TECLOCK GS-743G, ASKER E type
Used for drawing density of textile yarn rolls TECLOCK C type
(If the thickness of the test item is insufficient, it can be stacked, but it must be flat, without any gaps or other materials in the middle.)
4、 The difference between single pointer and double pointer:
Double pointers are easy to read the value in the first second, and can also time to read the value after a few seconds. If the customer has not purchased a constant pressure test bench? Non skilled users are prone to errors