Ejector Guide Pins Hardness Strength And Reduces Wear Molding Ceramic Ejector Guide Pin Rods
- Materials:Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
- Sizes:Custom according to the drawings
- 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...
- Customized:Can be custom for special sizes and shapes
1. Factory price and shipment within 24 hours In stocks
2. MOQ:1qty
3. Payment Term: PayPal; T/T; L/C etc.
4. Shipment: by sea by air by courier by post etc.
Ejector Guide Pins Hardness Strength And Reduces Wear Molding Ceramic Ejector Guide Pin Rods
Custom Alumina Zirconia ceramic mould injection parts
High precision Alumina Zirconia Ceramic Mould Injection Parts OEM
Ceramic Ejector guide pin for injection performs extremely well in extremely high pressure, high strength, abrasion and high temperature environments, much better than metal materials.
The ceramic ejector guide pin is also known as the push plate guide pin and ACTS as a guide for the ejector plate to slide.Because the injector guide bush slides, a hard material is used.The ceramic injector guide bushing is also known as the push plate guide tube.It is a cylindrical part used to position the injector by matching the guide pin.
The purpose of ceramic ejector guide system (Pin & Bush) is to align & take the pressure of Return Pin, Ejector Pin & Sprue Puller Pin.
The ceramic injection guide bush is located between Ejector & Ejector Retainer Plate and the Guide Pin is either guided or bolted in Bottom Plate or in Support Plate.
The main materials of the ceramic ejector pins:
· 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)
Part of us oem ceramic guide pin sizes(include but not limited belows)
OuterDiameter (Inch) |
Outer Diameter (mm) |
Maximum Length |
0.011 |
0.28 |
12in / 305mm |
0.020 |
0.51 |
12in / 305mm |
0.022 |
0.56 |
12in / 305mm |
0.024 |
0.61 |
12in / 305mm |
0.029 |
0.74 |
12in / 305mm |
Dimension and tolerance of oem :
·Diameter as small as 0.2mm, depends on length
·Length as long as 400mm, as short as 0.5mm
·Diameter tolerance we could make as fine as 0.001mm
The length, thickness , diameter and shape of the ceramic plates are customized.
Type of Ejector ceramic guide pins
Retaining ring type
JIS centering location type
JIS stuck-out type
Centering location type
Stuck-out type
Ejector Component List
this list is standard minimum to make ejector system
1. Ejector plate, place for ejector and ejector guide bush, shoulder bolts and return pin.
2. Ejector Backing Plate, place for clamping the ejector and push back the ejector.
3. return pin, push the ejector plate and ejector backing plate to first position.
4. spring in return pin, to make sure and holds the ejector plate so it's always in back position, when in assembling process, it can lift up the ejector pin, and ejector plate so the position always in back, give the little preloads to ejector plate to make sure the ejector plate position.
5. shoulder bolts, first time lock in assembling molds
6. ejector pin, eject and push the product from core.
7. ejector guide pin, guide the moving of ejector plate.
8. ejector guide pin bush, to make sliding and prevent large contact when moving.
9. support pillar, to prevent large deflection of core plate when injecting the plastic material process held.
10. ejector rod, contact with rod in injection machine, this also passing force from injection machine to ejector plate.
11. ejector bolts, to tie up between ejector plate and ejector backing plate.
Delivery:
Custom OEM will be shipped within 15 days after determining the parameters
The samples will be shipped within 3 days
Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
Support customer to designate shipping company
For more informations (the price,delivery time,moq etc, please contact us or email:admin@cerampart.com
Machining process
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector
Mingrui ceramic parts property
· Flexural strength |
· Chemical resistance |
· Electrical insulation |
· Corrosion resistance |
· Dielectric strength |
· Wear resistance |
· Temperature resistance |
· Thermal conductivity |
· High voltage |
· Hardness... |
Ceramic materials(include but not limited belows)
· 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 2O 3 |
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 |
Customization & Machining Service:
As a ceramic parts manufacturer,us offer a wide of the ceramic specification,and customized&machinables. Get a Quote On Your Customized Now!! or up a files by EMAIL.
Our Custom Capabilities:
1.High Purity Martoxid Powder
2.OEM Support, More Than 10 Technicians With 5-Year R&D Experience
3.35000 ㎡workshop, annual output could reach hundred million pieces.
4.All crafts are inspected strictly based on drawings,checked each month.
5.Best Service And Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
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Technical reference of manufacture |
Dimensional accuracy |
Up to 0.001mm |
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
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FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 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;
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