grinding Si3n4 ceramic bearing bush sleeve roller

grinding Si3n4 ceramic bearing bush sleeve roller

Reputation depends on quality,  quality comes from Hard!

Silicon Nitride Ceramic:

Silicon nitride ceramics gray black, conductive adhesion (baking temperature: 100°C/1.5H) silver powder (conductivity, heat dissipation, fixed wafer) + epoxy resin (cured silver powder) + thinner (easy to stir). Storage conditions: Silver glue manufacturers generally store silver glue at -40 °C, and application units generally store silver glue at -5 °C. Single agent is 25 °C/1 year (dry and ventilated place), mixed agent is 25 °C/72 hours (but due to other factors "temperature, humidity and ventilation conditions" during online operation, in order to ensure the quality of the product is average The mixture is used for 4 hours)
Baking condition: 150 °C/1.5H Stirring condition: Stir evenly in one direction for 15 minutes The gold wires used for LEDs are φ1.0mil, φ1.2mil, the material of the gold wire, the gold wire for LED generally has a gold content of 99.9 %, the use of gold wire makes use of its high gold content, soft material, easy deformation, good conductivity and good heat dissipation, silicon nitride ceramic sleeve so that a closed circuit is formed between the chip and the support. (Conversion relationship: 1 mil = 0.0254mm , 1 in = 25.4mm ) Composition: A and B two groups:
Glue A: It is the main agent, consisting of epoxy resin + defoamer + heat-resistant agent + thinner
Agent B: It is a curing agent, which is composed of acid + mold release agent + accelerator. Conditions of use: Mixing ratio: A/B=100/100 (weight ratio) Mixing viscosity: 500-700CPS/30 °C
Gel time: 120 °C*12 minutes or 110 °C*18 minutes Usable conditions: about 6 hours at room temperature 25 °C. Generally, according to the production needs of the production line, we set its use condition as 2 hours. Hardening conditions: initial hardening 110 °C-140 °C 25-40 minutes later hardening 100 °C*6-10 hours (flexibility can be adjusted according to actual needs)

properties:

High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.

Data Sheet↓

Application industry:

Machinery, electronic, semiconductor, chemical, petroleum, smelt.

Specific application:

Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.

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

8.Vigorous team and good after-sales service

Products Show

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.
Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.