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Industry News |
Home> Wei-sheng Machinery> Industry News |
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Car polishing method |
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Count：3546Records Date：2013-05-14 |
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Polishing the aging of the paint film can be ground off, so that the new film, restore beautiful. Polishing operations are divided into: the paint oxidation renovation polishing, most of the vehicle to do; paint scratch repair job, mostly local.
(A) the basic structure of the paint
The topcoat ---- primer ---- phosphate coating (paint primer) ---- iron
Second, the oxide layer
Perennial sunlight is the main reason for shortening the paint, a process called oxidation layer
(1) the depth of the oxide layer: refers to the car using the car in two to three years;
② moderate oxide layer: automotive car in one to two years;
(3) mild oxidation layer: the car using the car less than a year.
, Paint scratches judgment
① hairline scratches: car wash, fine scratches Cleaning or minor friction, hand touch without feeling.
② shallow scratches: topcoat is damaged, there is no exposed primer scratches shallow scratches.
(3) moderate scratches: finish is damaged, revealing a primer scratches moderate scratches.
④, deep scratches: exposing the car iron scratches deep scratches.
, Polish abrasives understanding
1, abrasives; pitting contains fine particles, the depth of the oxide layer can be removed and minor scratches and paint and sag
2, restore the paint polishes: finer than the abrasive particles, can remove mild scratches in the paint, the product contains oil to penetrate the paint finish polishing supplement lost oil paint points play Care brightening effect, also called the moderate polish.
The quick polish: more than restore the polishing agent carefully, also known as the fineness polish. Oxide removal and waxing double effect, as the final steps of polishing, the available hand to complete, to make up for the machine polishing uneven generated aura brightening effect, also known as brightening agent.
Fifth, the use of variable speed polishing machine (grinding machine)
Mechanical polishing machine is divided into two kinds of electric and pneumatic electric polishing machine relayed larger and relayed adjustable, power, polishing better, pay attention to the power machine for beginners should always pay attention to the state of the machine, so as not to damage the paint. Pneumatic polishing machine relayed is low, and the polishing mill less effective, relatively low efficiency of grinding and polishing operations. We generally use electric polishing machine variable speed polishing machine is a set as one of the grinding and polishing equipment, installing the grinding disc grinding operation, installation polishing disk polishing operations. Variable speed polishing machine is rotating grinding disc or polishing discs to smooth and polished finish to remove small paint defects and improve the brightness of the light.
Methods of operation:
①. Polishing machine is turned on or off must not touch the surface of the work.
② job, right hand clenched straight, left hand clenched cross from the left hand vertical force to the work surface, dial the work surface remains substantially parallel.
③ Before polishing machine is completely stopped, do not put down the grinder.
(4) Do not be too close to the border, bumpers and other parts of the job may be fastened on the outer edge of the dial.
(5) should always pay attention to the grinder wire to prevent the wire caught in the machine.
The ⑥ polishing, should be careful not to allow dust to fly in the face, but should make it down to the floor.
Polishing machine polishing discs no more than three types: wool disk, coarse foam pads, soft foam pads. Wool plate and coarse foam pads used for polishing and grinding occasions, and most of the polished surface of the soft sponge disk made of a bump and orderly wavy, is conducive to fine polishing, the formation of light as a mirror polished finish. Remember polishing operations case.
Features: adjusted according to the specific job and work revolutions.
Polishing tools required
Spray bottle - in the grinding and polishing operations, the grinding parts water, cooling, cleaning and lubrication.
Sixth, the depth of the oxide layer approach
① First, the paint surface clean, no need to dry.
(2) wet grinding disc depth (coarse) abrasive evenly to the paint.
(3) polishing machine boot light slow motion tune at the finish, the number of revolutions of 1000-1400 rev / min, grinding it again, and then water and then grinding it again.
(4) depth after grinding finish, wash with detergent to remove residual abrasive.
(5) with a wet polishing discs, polishing agent evenly on the paint.
(6) boot light slow motion on the surface of the operation, the number of revolutions of 1800-2200 rev / min, polishing it again, and then water and then polishing it again.
⑦ moderate polishing finished cleaning the paint with water to remove residual polish
(8) with polishing discs mirror polish evenly to the paint
Light ⑨ boot slow release of the operating surface, the number of revolutions of 1800-2200 rev / min, polishing again
⑩ last washing liquid to clean bodywork, dry sealing glaze or waxing. |
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