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Factory address:Hetan Industrial Park, Hanting District, Weifang City, Shandong Province

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Electrical grade magnesium oxide DZ-2

Electrical grade magnesium oxide DZ-2

  • category:Electrical grade magnesium oxide
  • Views:Times
  • Release date:2020-06-23 11:27:52
  • description
  • characteristics
  • Parameters

DZ-2 (25kg/bag, executive standard: JB/T 8508-1996 "Electrical grade magnesium oxide")》)


1、Chemical composition (composition of fused magnesia)


Ingredient

SiO2

Al2O3

Fe2O3

CaO

MgO

Specified value

≤2.0

≤0.5

≤0.5

≤1.2

≥97.0

Measured value(%)

1.30

0.37

0.43

0.90

97.0


2、Physical index

1. Particle size distribution:


Specified value: 40~325 mesh mixed particles -325 mesh: ≤15.00%


Measured value: 45~325 mesh mixed particles -325 mesh: 13.00%


2. Vibration density:


Specified value: ≥2.30g/cm3


Measured value: 2.38g/cm3


3. Flow rate: (natural flow value of 100g material in 4# Ford Cup)


Specified value: ≤45s


Found value: 45s



3、Electrical performance (straight tube SUS304 φ8 L heating = 450mm surface load 7W/cm2 dry burning until the leakage current value is stable)


Status

Normal

Tidal statu

Hot statu

Project

Insulation resistance  (ΜΩ)

Withstand voltage

V/0.5mA▪s

Insulation resistance

ΜΩ

Withstand voltage

V/0.5mA▪s

Leakage current

μA

Insulation resistance

ΜΩ

Specified value

≥1000

2000 passed

≥1000

2000  passed

≤200

≥2

Measured value

2500 passed

Return to ∞ after soaking in the nozzle for 12 hours

2500 passed

180

2.8

2500 passed

Return to ∞ after soaking in the nozzle for 12 hours

2500 passed

175

3.0


4、Tube surface temperature


Specified value: ≥650℃

Found value: 710℃



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