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Technical Description Model 435

Technical Description Model 435

Technical Description Model 435

Product catalog summary
Overview: The document provides technical descriptions and operating instructions for the Mar Tester Model 435 and the Adhesion and Scratch Resistance Tester Model 435 S. These devices are used to assess the resistance of surfaces to scratches and adhesion quality, particularly in glossy and smooth surfaces.
Specifications:
  • Model 435: Designed to measure surface quality by simulating scratches using a disc under adjustable force. It offers three test ranges: 0-3 N, 0-10 N, and 0-20 N, with varying sensitivities.
  • Model 435 S: An adaptation of Model 435, specifically for testing adhesion and scratch resistance on printed scales and vehicle cockpit fittings. It uses a steel test disc and offers similar force adjustment capabilities.
Design and Function:
  • Model 435: Utilizes a disc with a locking facility, mounted on a screw and pressured by a helical spring. The device is placed on the surface, and the disc applies a preset force to test scratch resistance.
  • Model 435 S: Features a test body rotated by 90° compared to Model 435, with a smaller test head. It is designed for adhesion testing and uses a steel test disc.
Method of Operation:
  • Model 435: The test disc is selected based on the material to be tested. The device is placed on the surface, and the force is applied by moving the instrument over the surface to create a visible scar.
  • Model 435 S: The test tool is fixed, and the force is adjusted. The device is placed on the surface, and the test is conducted by moving the instrument over the surface to test adhesion or scratch resistance.
Order Information:
  • Model 435: Includes three test discs (duroplast, copper, steel), three force springs, and a case. Spare parts include individual test discs.
  • Model 435 S: Includes a steel test disc, three force springs, and a case. Spare parts include a steel test disc.
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Catalog excerpts

Technical Description Model 435-1

Adhesion and Scratch Resistance Tester Model 435 S testing equipment for quality management Technical Description and Operating Instructions DIN 55 656

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Technical Description Model 435-2

Scars on surfaces are unsightly, especially on smooth, glossy surfaces. Surfaces can be ruined so easily - for example marks on the matt polished surface of a table, by a fingernail, or on the shiny bodywork of a Cadillac, by a twig. Great annoyance can result from such small causes. Marks can also be caused by metallic objects. The culprits may be metal particles from coins, cutlery or rings on fingers. Any of these can mar surface finishes. The traditional test for the resistance of surfaces to such damage was to try to mark the surface with a fingernail. With the Mar Tester, Model 435, the...

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Technical Description Model 435-3

At first developed from the Mar Tester 435, Model 435 S has been adjusted, in cooperation with a well-known manufacturer of - among others - scaled indication fittings for vehicle cockpits, especially to tests of this product group. When used as an adhesion tester e.g. the coloured coating applied to the dial of a speedometer in the shape of raised numbers, points or scale lines, is tested concerning its adhesion to the substrate, by lateral slipping with a defined “blunt” test body geometry, with a preselected test force. In principle the Model 435 S is feasible for testing the adhesion of almost...

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Technical Description Model 435-4

Order Information Ord.-No. Spare Parts Spare Part The right of technical modifications is reserved. Gr. 14 - TBE/BAE 435/-435 S - IV/2007 Postfach 1264 I 58652 Hemer I Germany I Tei.+49(0)2372-9683-0 I Fax+49(0)2372-6430 I www.erichsen.de I [email protected]

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