The bimetallic barrel is a wear-resistant, corrosion-resistant, high-humidity alloy cast on the inner wall of the barrel with a layer of 2-3mm. Its effective service life is greatly improved compared to ordinary nitride barrels. , PPO special types of plastics, etc., the superiority of bimetal is particularly obvious. We can use different alloys and welding methods for screws with different functions.
|Physical Characteristics Of Bimetallic|
|Characteristics||Alloy||Hardening ( Hrc )||Base Material|
|Abrasion Resistance And Anti-corrosion||Ni+Cr+Co+Fe+B||56-64||45/40Cr|
|High Abras On- Resistance And Anti- Corrosion||Ni+Cr+Wc+Co+B||58-67||45/40Cr|
Bimetallic screw technology data
|Scerew Materal||Tenssile Strength (Kgf/mm2)||Elastic coefficient (Kgf/mm)||Extension(%)||Fatigue Limit(Kgf/mm)||Hargness Hv|
|Alloy materal||Tenssile Strength (Kgf/mm2)||Elastic coefficient (Kgf/mm)||Extension(%)||Fatigue Limit(Kgf/mm)||Hargness Hv|
Depth of nitration case:0.5-0.8mm
Hardness of nitration:950-1 020HV
Fragility of nitration:Less than grade1
Roughness of the surface:Ra0.4un
Hardness of double alloys:HRC55- -62
Depth of double alloys:》2mm
Applied tange for plastic:engineering plastic such asABS,PP,PE , PA66,LCP, PA+GF,PET+GF, PBT+GF,PC+GF.
Processing capacity:screw diameter from 15mm to 350mm,max length 8000mm.
The roughness of surface:0.4
The strainghtness of screw:0.01 5mm/M
1.Are you a trading company or a manufacturer?
We are a manufacturer as you can see our workshop as above.
2. What kind of trade terms can you do?
3. What is your terms of payment?
50% deposit,balance 50% paid before shipment.
4. Do you support OEM ?
Yes, we can produce by technical drawings or samples.
5. How about your delivery time?
Generally, it take 40 days
6.Q: What are the after-sale services?
A: In case of quality problems, we can be exchanged within 90 days.