Yamamoto scientific tool laboratory

Concerning hardness management with blocks, testers should be directly verified in advance. In this case, at least three readings should be taken, and a X-R controlling method adopted. Measuring locations should be selected over the working surface to represent the hardness of the whole block surface. Serial No. The warranty period shall be three years from the inspection date, although the blocks are considered to be effective for five years.

Flaws and attachments on the front or back surface, as well as re-processing of blocks, are strictly forbidden This also applies to anvils used. Secular changes of Yamamoto hardness test blocks are eliminated by a sufficient heat treatment process, regardless of the block type. To make the maximum use of a block, indentations should be made evenly over the test surface. For this purpose, Yamamoto recommend dividing the working surface See the figure below.

For the durable limits specified in Table 3, reduce the numbers to half if the highest level of accuracy is required.

Yamamoto Test Block Ordering Guide:. Related Products. RFQ No. Ojiyas Thread Ring Gauge. Company Name. Best Regards Sales Team. English German French Italian. Your feedback Your name on a voluntary basis Your email address on a voluntary basis Your phone number on a voluntary basis We are sorry, but we cannot respond on each feedback. Private and customer information will remain confidential in accordance with our privacy policy. Thank you for your cooperation.

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