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Chapter Three Inspection Standards of Grain Hustle Cots
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Chapter Three Inspection Standards of Grain Hustle Cots

(Summary description)Enterprise standards: ministerial standards and foreign standards Corporate standards: general corporate standards are higher than ministerial standards Requirements for physical and mechanical properties of rubber:

Chapter Three Inspection Standards of Grain Hustle Cots

(Summary description)Enterprise standards: ministerial standards and foreign standards
Corporate standards: general corporate standards are higher than ministerial standards
Requirements for physical and mechanical properties of rubber:

Information

Chapter Three Inspection Standards of Grain Hustle Cots

  Corporate standards: ministerial standards and foreign standards

  Corporate standards: general corporate standards are higher than ministerial standards

   Rubber material physical and mechanical performance requirements:

   Breaking strength: MPa 19 (190K/cm2) or more

   Elongation at break:% 200 or more

   Energy consumption reduction cm3/1.61km <0.5

   Hardness: (Shore A) 85o 90o 95o

  The allowable tolerance is ±3o, and the difference between the highest and lowest hardness rates on the same rubber roller is greater than 2o.

   1. Use styrene butadiene rubber to make rubber rollers

   Rubber test piece: Tearing strength: MPa 23-25

   Elongation at break% 290-350

  Abrasion reduction Cm3/1.61km 0.19-1.05

   Hardness: (Shao A) 95o-96o

  2, use nitrile rubber to make brown rubber rollers

   Nitrile rubber: N230; N220; 41 etc.

   Rubber test piece: Tearing strength: MPa 24-26

   Elongation at break% 300-360

  Abrasion reduction Cm3/1.61km 0.08-0.15

   Hardness: (Shao A) 95o-97o

   3. Use Ding Ben rubber to make white rubber rollers

   Rubber test piece: Tearing strength: MPa 22-24

   Elongation at break% 280-300×320

  Abrasion loss Cm3/1.61km 0.15-0.10

   Hardness: (Shao A) 94o-95o

  4. Use nitrile rubber and PVC to make white rubber rollers

   Nitrile rubber: N230; N220; 41 etc.

  PVC: Suspension method PVC-SG4-6 type

   Rubber test piece: Tearing strength: MPa 24-25

   Elongation at break% 300-350

  Abrasion reduction Cm3/1.61km 0.06-0.1

   Hardness: (Shao A) 96o-98o

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