技術文章

Ford FLTM BO160-04涂塑料部位高壓清洗作業性

2019-09-06 08:54:57 來源：上海鼎徵儀器儀表設備

FORD LABORATORY TEST METHOD
BO 160-04

Application
This procedure defines the test equipment and test method for the resistance of painted plastic parts (e.g., bumper bars, mirror housings, radiator grills) against high pressure cleaning processes.

Equipment Required
High Pressure Cleaning Equipment:
Cleemax serial 1053

Source:
Pearson Panke Equipment Ltd,
1-3, Hale Grove Gardens,
London NW7 3LR
Great Britain.
Or equivalent instrument suitable to provide the required temperature, pressure and flow rate of water, with a fixed or moving head.

Jet type QVVA 2506

Scriber type:
See FLTM BI 106-1

Settings –
Method A, fixed jet:

Jet position	Perpendicular to specimen
Water temperature	70 °C +/- 2 °C
Distance of nozzle to specimen	50mm +/-3mm
Water pressure	3000 +/-50 kPa
Testing time	60 +/- 3 seconds
Water flow rate	420 litres/hour minimum

Method B, moving jet.

Jet position	Perpendicular to specimen
Water Temperature	80 °C +/- 4 °C
Distance of nozzle to specimen	100 mm +/-3mm
Water pressure	6000 +/-50 kPa
Moving range	30mm +/- 10 mm from center,total traverse 60mm
Moving cycle	60 cycle/minute
Moving direction	parallel to the X scribe on the specimen
Jet position	Perpendicular to specimen
	(The lines of the X scribe are Northeast to Southwest. The longer axis of the spray fan pattern is East-West, and the direction of movement is North-South.)
Testing time	120 seconds, +/-3 seconds
Water flow rate	610 litres/hour minimum
Note: The water pressure and water temperature settings must be measured immediately behind the nozzle

Conditioning and Test Conditions
All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 °C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified.
Procedure
1. The equipment is filled with water without any additional cleaning agents and heated.
2. Before testing the equipment must be adjusted to the required test pressure for the specified distance.
3 Scribe the panel with an X scribe, over the whole area to be exposed to the water jet.
4. The gun with the nozzle is fixed to the required distance from the nozzle to the painted surface which is to be tested. The jet of water has to be directed vertically onto the painted surface.
5. Spray water for the specified length of time.
6. The surface is dried and evaluated after cooling to 23 +/- 2 °C.
7. Report any failure (e.g., loss of gloss, loss of adhesion, surface deterioration). The principal failure mode is paint peeling.

Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities.

留言