BGD 520 Testeur automatique de rayures

Description

BGD 520Automatic Scratch Tester

Coatings and paints can protect, decorate substrate or conceal the defects of substrate, and these three functions are related with coatings hardness. And hardness is the important performance for paint mechanical strength, as well as the important indicator to judge paint quality. One of important indicators to evaluate coatings hardness is scratch tester.

OIN 1518 《Peintures et vernis — Determination of scratch resistance》specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scratch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat.

This test has been found to be useful in comparing the scratch resistance of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in scratch resistance.

BGD 520 Testeur automatique de rayures

Before 2011, there is only one standard which is used to evaluate paint scratch resistance, which against to evaluate scientifically to paints scratch resistance under different applications. After revise this standard on 2011, this test method is divided two parts: One is constant-loading, i.e the loading to panels is constant during the scratch test, and the test results is shown as max. weights which don’t damage coatings. The other is variable loading, i.e. the loading on which stylus loads test panel is increased continuously from 0 during the whole test, then measure the distance from finial point to the other point when the paint appear scratch. Testing result is shown as critical loads.

As a important member of Chinese Paint & Coating Standard Committee , Biuged is responsible for drafting the relative Chinese standards on the base of ISO 1518, and developed BGD 520 scratch testers which conforms the newest ISO 1518:2011.

BGD 520Automatic Scratch Tester

Personnages

◆ Big working table can be moved left and right—convenient for measuring different areas in the same panel

◆ Special fixing device for sample—can test different size substrate

◆ Sound-light Alarm system for puncturing through sample panel—more visual

◆ High hardness material stylus—plus durable

BGD 520Automatic Scratch Tester

Principaux paramètres techniques：

Ordering information → Paramètre technique ↓	BGD 520/1 Automatic Scratch Teter （Constant-loading）	BGD 520/2 Automatic Scratch Teter （Variable-loading）
Conform standards	OIN 1518-1 BS 3900：E2	OIN 1518-2
Stylus	Having a hemispherical hard-metal tip of radius 0.5mm	Coned sapphire or diamond, the tip radius is 0.03mm
Angle between stylus et sample	90°	90°
Poids	0.5N×1，1N×1，2N×2，5N×1，10N×1	0g～50g or 0g～100g or 0g～200g
Moteur	30W 220V 50HZ	60W 220V 50HZ
Sytlus M.oving Speed	（35±5）mm/s	（10±2） mm/s
Working Distance	120mm	100mm
Max.. Panel Size	200mm×100mm
Max.. Panle Thickness	Moins que 1 mm	Moins que 12 mm
Taille globale (L×W×H）	560mm×270mm×380mm	580mm×270mm×300mm
Poids net	17 KG	17.5 KG

BGD 520Automatic Scratch Tester

ptional Accesseries

BGD 1003—Scratch stylus A, having a hemispherical hard-metal tip of radius (0,50 ± 0,01) mm.

BGD 1004—Scratch stylus B, having a hemispherical hard-metal tip of radius (0,25 ± 0,01) mm.

BGD 1005—Scratch stylus C, having a hemispherical synthetic-ruby tip of radius (0,50 ± 0,01) mm.

BGD 1006—Scratch stylus D, having a hemispherical synthetic-ruby tip of radius (0,25 ± 0,01) mm.

BGD 1007—Stylus for BGD 520/2