Normally in the market, the interelock clamps are hot dip galvanzied zn plated. But for the larger size, which from 1" to 4", because of the constructure of the interlock clamps, the hot dip galvanze surface treatment have obvious disadvantages, please check the following photos.
Facing this problem, what to do? Regalvanized again or get out of these clamps from our product list or resolve the problem forever?
Finally, we updated our procedure, we choose the Dacromet surface treatment. Please check the follwing interloc clamps photo:
Compare to the hot dip galvanized zn plated interlock clamps, what advantage Dacromet surface treatment interlock clamp present?
1) No hydrogen embrittlement
2)High corrosion resistance
3)Resistance against automotive fluids
4)Ductility
5)Electrical conductivity
6)Heat resistance ( above 300℃)
7)Overpaintablility
8)Penetration capability
9)In thin layers (4~8μm）
10)Non-electrolytic
11)With or without selflubrication
12)Water based
13)Patented chemistry
14)Passivation by chromium-oxide binder
15)Excellent behaviour at the assembly of parts and at multiple screwing
16)Good resistance against mechanical damage
Know more about Dacromet surface treatment:
Dacromet is an inorganic firmly adhesive coating out of zinc- and aluminium flakes in a chromate connection. This coating is appropriate for high corrosion requirements. Dacromet is particularly suited for thin layer thicknesses. Thus the procedure is used in the automotive industry for screwing elements. It characterizes moreover by a good heat resistance with a low friction coefficient. The danger of a hydrogen embrittlement does not exist.
Because of the general avoidance of hydrogen embrittlement the environmental procedure is widely used at the coating of connection elements and safety components in the automotive industry.
The application of Dacromet is effected in a cold immersion procedure in aqueous solutions or by spraying. The Dacromet layer is thereby applied by means of an aqueous dispersion of chromated zinc flakes in a dip-spin process, dried and subsequently burned in at about 300 °C.
This is an environment-friendly spinning process. The products obtain a chemical and mechanical pre-treatment by means of degreasing and blasting. Then thin, non electrolytic layers are applied – composed out of zinc- and aluminium flakes in an organic matrix. Hereby a coating passivated throughout the whole layer with an excellent corrosion resistance occurs. In the form of single- or multilayers, layer thicknesses of 4 to 8 µm have to be obtained.
Dacromet offers an excellent protection for (small) fixing parts. The procedure provides for a maximal protection with its minimal layer thickness.
Dear Friends, if you need more information, please Email or call us direcly:
Email: sales@icmhoseind.com
Ph: +86-151-6915-4504
Contact: Wendy Liu MP:+86-18660803139 (whatsapp)
Skype: wendyciphappy