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Ceramic Locating Pins Si3n4 Silicon Nitride Welding Guide Heat-Resistant And Non-Conductive Ceramic Pin

  • Materials:Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
  • Sizes:Mini-OD: 0.02mm;Max-length: 500mm
  • Delivery times:2 -25 days(depends on the quantity)
  • Precision:Ra 0.1um tolerance: 0.001mm... etc
  • Features:Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation...

Ceramic Locating Pins Si3n4 Silicon Nitride Welding Guide Heat-Resistant And Non-Conductive Ceramic Pin


OEM And Custom The Ceramic Parts And Components With Your Drawing Or Demand

Ceramic Locating Pins

Locating pins for Nut welding are produced with several different materials and several different coatings. Generally speaking, the more costly the pin, the “longer life” it has in production. As a long time distributor of resistance welding supplies, we stock commonly used pins at competitive prices.


Silicon Nitride Ceramic is typically used to make welding guide rolls for the high frequency ERW in continuous steel tube & aluminium tube production. Si3N4 is an excellent material solution in this application because of its following advantages:

· Flexural strength · Chemical resistance · Electrical insulation · Corrosion resistance · Dielectric strength
· Wear resistance · Temperature resistance · Thermal conductivity · High voltage · Hardness...


Location And Resistance Weld Centering Pins

The heat-resistant and non-conductive ceramic pin materials help achieve consistency over hundreds of thousands or millions of welds, without the need for constant downtime and replacement.
The weld pins are available in three standard noses, for automatic feeders or hand-fed applications, with standard diameters to 0.1 mm stamping hole diameter.



Part of us manufacturer pins:

NUT SIZE A C E F G
M4 3 12 4.8 6.5 12.0
M5 3 12 5.8 7.5 12.0
M6 5 12 6.8 9.5 13.9
M8 6 14 7.8 9.5 13.9
M8 6 14 8.8 8.0 13.9
M8 6 14 9.0 7.5 13.9
M10 7 16 10.2 8.0 13.9
M10 7 16 10.7 8.0 13.9
M12 8 18 14.4 8.0 13.9
M12 8 18 11.6 8.0 13.9
Tips: avaible in stocks part of above, and can be customized

Small Head Pins
Small head locating pins are typically smaller than the pin's shoulder, which is 22 or 25mm in diameter. The NAAMS Standards pin diameter sizes for small heads are 6mm, 8mm, 10mm, 12mm, 13mm, 16mm, and 19mm. 
Large Head Pins
Large head locating pins have heads wider than the insert bases which is a diameter of 15.98mm. The standard sizes for large heads are offered in 25mm, 30mm, 35mm, and 40mm.
Retractable Pins
All retractable pins come with a slotted hole meant for an 8mm socket head shoulder screw assembly. The standard offerings are the same as the small heads and large heads but retractable locating pins do not come with shoulders because of the added slot and hole configuration. 
Bullet Nose Pins, Diamond Pins, and Cone Pins
Bullet nose and cone pins come as 4-way and 2-way pins like diamond pins. They work as 4-way pins by restricting the motion from 2 different axis, stopping the located part in 4 separate directions. This helps to keep your workpieces in place during the automation or manufacturing process. As 2-way pins, they come with two slits and the diamond pins come with a diamond shaped head. This limits the free motion to only 1 axis or 2 degrees of movement. Using a configuration of both 2 and 4-way pins help to hold workpieces in the desired place.
Round and Sphere Pins
Round and sphere pins are the most common and come as a 4-way. Though they are most common, they can present problems suck as binding the workpiece. It is recommended to use them in conjunction with 2-way pins.
Ceramic materials
· 95%--99.99% Alumina (Al2O3)   · Silicon Carbide   · Silicon Nitride  · TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)   · ZDY: Yttria fully stabilized Zirconia (ZrO2)...

 

Al 23
ZrO2/Y2O3 ZrO2/MgO MgO SiC Si3N4 Reaction sintered Si3N4 Hot pressed ALN
Physical properties                
Density (g/cm3) 3,9 5,9 5,75 3,58 3,2 3,27 3,29 3,26
Molecular weight (g/mole) 102 - - 40,4 40,1 140 140 41
Maximum service temperature air (°C) 1700- 1800 1500 1000 2200 1500 1200- 1500 1100- 1600 1000- 1800
Mechanical properties                
Hardness (Mohs) 9 - - 5,5 9 - - 7
Modulus of elasticity (GPa) 300-400 200 200 250-300 420 170-220 280-310 318
Poisson's ratio 0,25 - - 0,18 0,14 0,25-0,26 0,27 0,25
Fracture toughness (MPa.m1/2) 2-3 7-13 6-10 - 2,5-3,5 3,5-5 6,1 4,5
Electrical properties                
Dielectric constant 9-10 - - 9-10 - 10 10 9,2
Electrical resistivity at 20°C (Ohm.cm) >10 14 10 13-10 14 >10 10 - 10 2-10 6 >10 7 10 12- 10 15 >10 14
Dielectric strength (kV/mm) 10-20 9 2-10 - - - - 15
Thermal properties                
Specific heat (J/K/kg) 900 400-500 420 870-880 750 690 680-800 800
Thermal conductivity (W/m/K) at 20°C 26-35 2,2-3,2 1,5-2,5 40-50 63-155 9-30 15-43 180
Coefficient of thermal expansion ( 10-6) from 20 to 1000°C 8-9 10-11 5-16 10-13 4-5 3 3,3 4,4-5,3
Melting point (°C) 2050 2590 - 2800 2500 1900 1900 2200

 

Precision of manufacture
Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Precision process CNC maching,grinding,lapping
Surface finish Glazed,polishing or metallized
Visual quality:
1. No cracks,  no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface


Customization & Machining Service
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic pins or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics

FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-10 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
 
Feedback
1. For any query or doubt, please contact us firstly, we will update with you soon;
2. For any other satisfaction, please also feedback to us, which could improve our service better and better.

 

For more information about ceramics parts,please contact our engineers in time  >>>       
 

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Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL:+8618122974730
MB:+86 181 2297 4730 Tel:+86 746 3386888
Skype:+86 181 2297 4730
Email:admin@cerampart.com
ADD:No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City