insulated alumina ceramic pitch threaded bolt sleeve

insulated alumina ceramic pitch threaded bolt sleeve

Reputation depends on quality,  quality comes from Hard!

Alumina Ceramics:

Mastering the demolding point is a key. Premature demolding, insufficient strength of the blank, difficult demoulding, and easy collapse of the green body after demolding; too late demolding, the green body will crack. Stick repair: including one repair of the blank, Punching and bonding. Traditional grouting methods have rough surfaces inside and outside the body after demoulding. Generally, it needs to be repaired several times, and the amount of bonding is also large. Modern use of high-strength plaster mold or resin Mold, pressure grouting and other methods have greatly reduced the work of sticking. The work of repairing blanks, punching and bonding must be performed manually, prone to waste, and the moisture content of the blank must be mastered. Drying: pre-drying (also (Referred to as semi-dry), that is, the moisture content of the green body is reduced from 15% to 17% (water content when bonding) to about 8%. In the traditional pouring method, the pre-drying of the green body is naturally dried in the grouting workshop. Within 16 hours after work, the grouting workshop maintains high temperature (33-40 ° C) and high humidity (40% -60%), so that the green body is slowly dried. After pre-drying, the water content of the wet green The rate has dropped from 15% to 17% to 8% to 10%. Care must be taken to prevent waste due to excessive drying or uneven drying.

High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc. 

Data Sheet↓

Thermal Shock Resistance: 200 △T°C

Maximum use temperature 1650°C

Dielectric Strength: ＞10 KV/mm

Dielectric Constant: 9.1er

Dielectric Loss Angle(1MHz): 0.0002-0.0003

Volume Resistivity(20°C): ＞1014Ω.cm

7.MOQ is not limited, small quantity is welcome.

8.Vigorous team and good after-sales service

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FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.
 
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
 
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.