CN104977253A - Aluminum alloy wheel paint film adhesive force testing method - Google Patents

Abstract

The invention discloses an aluminum alloy wheel paint film adhesive force testing method, and relates to the aluminum alloy wheel paint film inspection technical field; the method mainly includes the steps of preparation of tools, grid drawing, inspection, determination and the like. The aluminum alloy wheel paint film adhesive force testing method is simple and easy to implement and high in inspection precision, and improves the qualification rate of products.

Description

A kind of aluminum-alloy wheel paint film adhesion method of inspection

Technical field

The present invention relates to aluminum-alloy wheel paint film Examined effect field, is more particularly a kind of aluminum-alloy wheel paint film adhesion method of inspection.

Background technology

PASS refers to the ability be combined with each other between paint films and coated article surface or between coating.Adhesion is an important technical indicator, is the prerequisite that paint film possesses a series of performance.The paint film that adhesion is good is durable in use, possesses the performance of request for utilization; The paint film of PASS difference easily ftractures, comes off, and cannot use.

Summary of the invention

The object of the invention is to make up the deficiencies in the prior art, a kind of aluminum-alloy wheel paint film adhesion method of inspection is provided.

The object of the invention is to be achieved through the following technical solutions:

A kind of aluminum-alloy wheel paint film adhesion method of inspection, is characterized in that: comprise the following steps:

(1) preparation tool: cutter, pressure sensitive adhesive tape (pulling force is greater than 800 grams), erasing rubber;

(2) draw grid: mark grid with cutter at wheel place to be measured, the pass of film thickness and cut spacing is: film thickness≤50um, cut spacing is 2mm; 50um < film thickness≤200um, cut spacing is 3mm; Film thickness > 200um, cut spacing is 5mm;

(3) check: be bonded at grid top with pressure sensitive adhesive tape, with erasing rubber wiping adhesive tape, make it to fit completely with paint film, uniform pull-up adhesive tape of then exerting oneself;

(4) judge: the situation that comes off examining paint film Box junction place, judge adhesion rank, criterion is: superfine: not have enamelled coating to peel off; One-level: peel off area and be less than 5% square area; Secondary: peel off area and be about 5%-15% square area; Three grades: peel off area and be about 15%-35% square area; Level Four: peel off area and be about 35%-65% square area; Pyatyi: peel off area and be greater than 65% square area.

The invention has the advantages that:

The aluminum-alloy wheel paint film adhesion method of inspection of the present invention is simple, easy, checks that precision is high, improves the qualification rate of product.

Embodiment

A kind of aluminum-alloy wheel paint film adhesion method of inspection, comprises the following steps:

(1) preparation tool: cutter, pressure sensitive adhesive tape (pulling force is greater than 800 grams), erasing rubber;

(2) draw grid: mark grid with cutter at wheel place to be measured, the pass of film thickness and cut spacing is: film thickness≤50um, cut spacing is 2mm; 50um < film thickness≤200um, cut spacing is 3mm; Film thickness > 200um, cut spacing is 5mm;

(3) check: be bonded at grid top with pressure sensitive adhesive tape, with erasing rubber wiping adhesive tape, make it to fit completely with paint film, uniform pull-up adhesive tape of then exerting oneself;

(4) judge: the situation that comes off examining paint film Box junction place, judge adhesion rank, criterion is: superfine: not have enamelled coating to peel off; One-level: peel off area and be less than 5% square area; Secondary: peel off area and be about 5%-15% square area; Three grades: peel off area and be about 15%-35% square area; Level Four: peel off area and be about 35%-65% square area; Pyatyi: peel off area and be greater than 65% square area.

Claims (1)

1. an aluminum-alloy wheel paint film adhesion method of inspection, is characterized in that: comprise the following steps:

(1) preparation tool: cutter, pressure sensitive adhesive tape (pulling force is greater than 800 grams), erasing rubber;

(2) draw grid: mark grid with cutter at wheel place to be measured, the pass of film thickness and cut spacing is: film thickness≤50um, cut spacing is 2mm; 50um < film thickness≤200um, cut spacing is 3mm; Film thickness > 200um, cut spacing is 5mm;

(3) check: be bonded at grid top with pressure sensitive adhesive tape, with erasing rubber wiping adhesive tape, make it to fit completely with paint film, uniform pull-up adhesive tape of then exerting oneself;

(4) judge: the situation that comes off examining paint film Box junction place, judge adhesion rank, criterion is: superfine: not have enamelled coating to peel off; One-level: peel off area and be less than 5% square area; Secondary: peel off area and be about 5%-15% square area; Three grades: peel off area and be about 15%-35% square area; Level Four: peel off area and be about 35%-65% square area; Pyatyi: peel off area and be greater than 65% square area.