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Ceramic Dowel Pin High Strength Performance Silicon Nitride Al2o3 Zro2 Dowel Pins

  • 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 Dowel Pin High Strength Performance Silicon Nitride Al2o3 Zro2 Dowel Pins


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

Ceramic dowel pin is used as guide pin on projection nut welding.It adopt silicon nitride,AL2O3,ZrO2 etc.ceramic material.With good insulation performance,ceramic dowel pin protect electrode when welding workpiece.But due to  ceramic is fragile,more and more dowel pin use KCF material.

Ceramic Dowel Pin Technical Specification 

Pins Diameter:M4,M5,M6,M8,M10,M12…

Ceramic dowel pin Application:  projection welding,nut welding,stud welding

 

Type of Ceramic Dowel Pins:Straight Dowel; Oversize Dowel ; Undersize Dowel; Pull; Dowel Pin; Groove Pin



Part of us products dowel pins:

Diameter tolerance of cylindrical dowel pins (parallel pins)

cylindrical dowel pins (parallel pins)
nominal 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6
A type(dm6) min 0.602 0.802 1.008 1.002 1.502 2..002 2.502 3.002 4.004 5.004 6.004
max 0.608 0.808 1.008 1.008 1.508 2.008 2.508 3.008 4.012 5.012 6.012
B type(dh8) min 0.586 0.786 0.986 1.486 1.486 1.986 2.486 2.986 3.982 4.982 5.982
max 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6
C type(dh11) min 0.54 0.74 0.94 1.14 1.44 1.94 2.44 2.94 3.925 4.925 5.925
max 0.6 0.8 1 1.2 1.5 2 2.5 3 4 5 6
D type(du8) min 0.618 0.818 1.018 1.218 1.518 2.018 2.44 3.018 4.023 5.023 6.023
max 0.632 0.832 1.032 1.223 1.523 2.032 2.532 3.032 4.041 5.041 6.041
8 cylindrical dowel pins (parallel pins)

length tolerance of cylindrical dowel pins (parallel pins)

cylindrical dowel pins (parallel pins)
L min max L min max L min max
3 2.75 3.25 4 3.75 4.25 5 4.75 5.25
6 5.75 6.25 8 7.75 8.25 10 9.75 10.25
12 11.5 12.5 14 13.5 14.5 16 15.5 16.5
18 17.5 18.5 20 19.5 20.5 22 21.5 22.5
24 23.5 24.5 26 25.5 26.5 28 27.5 28.5
30 29.5 30.5 32 31.5 32.5 35 34.5 35.5
40 39.5 40.5 45 44.5 45.5 50 49.5 50.5
55 54.25 55.75 60 59.25 60.75 65 64.25 65.75
70 69.25 70.75 75 74.25 75.75 80 79.25 80.75
85 84.25 85.75 90 89.25 90.75 95 94.25 95.75
total 4 cylindrical dowel pins (parallel pins)

Tips: OEM ceramic pins,  Fast delivery on orders , Business to business, Quick & easy to order


High-consistency and extremely low tolerance dowel pins are ideal for critical fixture construction where precise and accurate placement is critical.

Dowel pins, made of Silicon Nitride (shown above, in white) are available in h6, m5 and m6 tolerances per DIN 6325 and m6 tolerances per ISO 2338. The Z-101 has a high tensile strength, low heat conductivity and high maximum operating temperature to make it suitable for many different applications.
 

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