automotive industry, pre-treatment & paint plants - AR Thomson Group
automotive industry, pre-treatment & paint plants - AR Thomson Group automotive industry, pre-treatment & paint plants - AR Thomson Group
AA U T O MM O T I VV EE AESSEAL ® AUTOMOTIVE INDUSTRY L-UK/US-AUTO-02 IN 4379 - 01/2002 8 Sealing "Phosphate Dipping" During the phosphate dip, the vehicle body is chemically etched, providing a layer of crystal on the surface of the steel, which provides a "tooth" for the paint to adhere to. Mechanical seals may be found on the phosphate circulation pumps, which circulate the liquid around the dip tank or on phosphate sludge pumps, which take the sludge away to the filtering process. Phosphate contains DI-water and it is undesirable to leak vast quantities, however, it is difficult to seal. If one can seal the "phosphate" process, one can seal the whole paint plant. The key to successful sealing is to keep the phosphate moving and avoid dead areas in the pipework where "growth" can occur. Sealing "E Coat" at the Halewood jaguar plant. Seal Standardization Seal Type: CDSA double cartridge seal with Z895 grease Seal Faces: SiC/SiC//SiC/Car Seal Elastomers: Viton ® Seal System: SSE10 W2 or water ring main Barrier Fluid: DI or plant water © Copyright 2002 AESSEAL plc All Rights Reserved.
Sealing the Pasivator Process Mechanical seals will be found on the centrifugal recirculation pumps. Solids can be present depending on the conditioner additive used (Zirconium). Seal Standardization Seal Type: CDSA double cartridge seal with Z895 grease Seal Faces: TC/TC//Chrox/Car Seal Elastomers: Viton ® Seal System: SSE10 W2 Barrier Fluid: Ultra filtrate/ Di water Sealing the "ELPO Dip/Plating or E Coat" Process Mechanical seals may be found on the circulation, and centrifugal pumps. Seal Standardization Seal Type: DMSF double cartridge seal with Z895 grease Seal Faces: TC/TC//TC/Car Seal Elastomers: Viton ® Seal System: SSE10 W2 Barrier Fluid: Ultra filtrate/ Di water (consult AESSEAL ® on application). Alternative Seal Type: CDSA double cartridge seal with Z895 grease Seal Faces: TC/TC//TC/Car Seal Elastomers: Viton ® Seal System: Water ring main Barrier Fluid: DI or Ultra filtrate Sealing the "UF-Dip" (Ultra Filtrate) The Ultra Filtrate dip consists of DI mineralized water and generally is found with bits of paint in it. Mechanical seals may be found on the centrifugal circulation and filter pumps. Problems arise should the Ultra Filtrate vaporize between the seal faces and leave paint residue behind. This sticks the seal faces together which can break Silicon Carbide seal faces on equipment startup. Seal Standardization Seal Type: CURC single cartridge seal with Z895 grease Seal Faces: TC/TC Seal Elastomers: Viton ® Seal System: API Plan 13 *Optional: CDSA TC/TC//Chrox/Car-Viton ® (Z895) with SSE10 W2 seal support system. © Copyright 2002 AESSEAL plc All Rights Reserved. AA U T OO MM O T I VV EE AESSEAL ® AUTOMOTIVE INDUSTRY L-UK/US-AUTO-02 IN 4379 - 01/2002 9
- Page 1 and 2: A Guide to Seals in the AUTOMOTIVE
- Page 3 and 4: CONTENTS Description Page Introduct
- Page 5 and 6: A Typical Vehicle Paint Production
- Page 7: Sealing at the "Pre-clean" Stage Pr
- Page 11 and 12: Seal Standardization Seal Type: CDS
- Page 13 and 14: CASE No. 843H In a car plant in the
- Page 15 and 16: NOTE: Due to AESSEAL’s policy of
AA U T O MM O T I VV EE<br />
AESSEAL ®<br />
AUTOMOTIVE<br />
INDUSTRY<br />
L-UK/US-AUTO-02<br />
IN 4379 - 01/2002<br />
8<br />
Sealing "Phosphate Dipping"<br />
During the phosphate dip, the vehicle body is chemically etched, providing a layer of crystal on the<br />
surface of the steel, which provides a "tooth" for the <strong>paint</strong> to adhere to. Mechanical seals may be found<br />
on the phosphate circulation pumps, which circulate the liquid around the dip tank or on phosphate<br />
sludge pumps, which take the sludge away to the filtering process.<br />
Phosphate contains DI-water and it is undesirable to leak vast quantities, however, it is difficult to seal.<br />
If one can seal the "phosphate" process, one can seal the whole <strong>paint</strong> plant. The key to successful<br />
sealing is to keep the phosphate moving and avoid dead areas in the pipework where "growth" can<br />
occur.<br />
Sealing "E Coat" at the Halewood jaguar plant.<br />
Seal Standardization<br />
Seal Type: CDSA double cartridge seal with Z895 grease<br />
Seal Faces: SiC/SiC//SiC/Car<br />
Seal Elastomers: Viton ®<br />
Seal System: SSE10 W2 or water ring main<br />
Barrier Fluid: DI or plant water<br />
© Copyright 2002 AESSEAL plc All Rights Reserved.
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