WebAug 15, 2024 · The Cerchar abrasivity index (CAI) is the most common test that uses a steel pin with a C-scale Rockwell hardness (HRC) of 54–56 with a defined geometry to scratch 10 mm of the rough rock surface using a static load of 70 N and a speed of 1 mm/s [[12], [13], [14]]. Web본 연구에서는 Gehring, CSM, NTNU 모델을 이용한 디스크 커터 수명 예측 방법과 각 모델이 가지는 특징을 살펴보았다. 디스크 커터 수명에 크게 영향을 주는 요소인 관입깊이, 암석의 일축압축강도, 마모지수의 변화가 각각의 예측 모델들에 미치는 영향을 분석하였다. 디스크 커터 수명은 1회전당 관입 ...
Cerchar - significado de cerchar diccionario - TheFreeDictionary.com
WebFollow these three steps, and we will take care of everything else. Step 1: First, fill out the application form and provide information such as your passport number, arrival date, and contact phone number. When you are finished, select the product you need to travel to and the processing time. WebThe CERCHAR Abrasivity Test is a method to determine an index called CERCHAR Abrasivity Index (CAI) for the rock's abrasivity. The test measures the wear on the tip of a steel stylus having... how do you play carom billiards
Study of some testing condition-based factors affecting …
WebMar 3, 2008 · The Cerchar test has gained popularity as a relatively convenient and inexpensive method of measuring and comparing the abrasiveness of rocks. The testing results of 29 sedimentary rocks from Zonguldak Coal Basin were analysed and following conclusions can be drawn from the study: WebNov 24, 2024 · Cerchar tests are carried out on granite, sandstone, and slate samples, with different testing distances (1 mm, 3 mm, 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, and 20 … WebMeasurement apparatus for determination of rock abrasiveness as specified by the Cerchar test. Precision slide for smooth movement with graduated knob for accurate scratch distance control with 0.01 mm precision. Includes one hundred (100) sharp steel indenters with hardness of 200 kg/mm2 and 90° cone angle according to the Cerchar test. how do you play categories