เครื่องทดสอบความแข็งBarcolแบบพกพา,SHAHE, Shahe 934-1 Portable Aluminum Hardness Tester, Barcol Hardness Tester For Aluminum Alloys Copper,

Introduction

Portable:The hardness tester is a convenient tool for testing the hardness of aluminum,aluminum alloys,copper,brass and other materials including plastics and fiberglass.The instrument is designed for use on fabricated parts and assemblie as well as on raw stock

Easy to Use :No experience required;can be used in any position and in any space that will allow for the operator' hand.The hardness reading is instantly indicated on the dial,which is divided into one hundred graduations.No waiting pre-loading or separate measurements

Lightweight:The impressor weighs only 0.55 kg and comes complete with carrying case,adjusting wrench and two spare indenter points 2kg.

Applications:

934-1 for soft metals such as aluminum and its alloys,brass,copper, and some of the harder plastics and fiberglass. Approximate range 25 to 150 Brinell(10 mm ball 500 kg load).This unit meets American Society for Testing and Materials(ASTM) Standard D-2583.

Operating information:

1.The hardness tester is best suited for testing homogeneous materials.Materials of granular.fibroud or coarse struture will produce a wide variation in hardness readings because of the small diameter of the ienter point.

2.For accurate readings,material should be atleast 1/32"thick and large enough for a minimum distance of 1/8" in any direction from the indenter point to the edge of the specimen.The testing area should be smooth and free from mechanical damage.

3.Simply exert a light pressure against the instrument to drive the spring-loaded indenter point into the material.The indenter point must be perpendicular to the surface being tested.

4.On very soft metals,the highest reading should be used since cold flow permits the spring-loaded indenter point to continue penetration.