ASME B107.36 pdf free download
ASME B107.36 pdf free download PLIERS: LOCKING CLAMP, AND TUBINI! PINCH-OFF
4.4 Handles
Handles of pliers shall be through hardened from30 to 50 HRC or case hardened from 75 to 86 HR15N,with a case depth of a minimum of 0.010 in. (0.25mm). Handles shall be so shaped as to afford a comfort-able grip and shall be free from rough edges and sharpcorners. When the pliers are locked in any position ofthe jaws,the minimum handle clearance between thefixedand movable handle shall be as specified inthe appropriate tables.Outer hand-gripping surfaces ofhandles shall be smooth，knurled,or impressed.
4.5 Joints
Pliers joints shall have no excessive looseness，play,or any other indications of side play of the two halvesof the pliers when opened or closed，which couldimpair the function of pliers. Joint fasteners shall bethrough hardened from 25 to 50 HRC. Where fastencrsreceive a case hardening treatment in addition to thethrough hardening,a maximum hardness of 60 HRCor equivalent will be permitted.
4.6 Jaws
4.6.1 Jaw openings. Ends of jaws shall open,when adjusted by the screw，to the entire respectiveclamping range minimum specified in Tables 2 through5.Pliers shall operate in a smooth and uniform manner.
4.6.2 Jaw Hardness.Jaws shall be through hard-ened from 35 to 50 HRC or case hardened from 83to 90 HR15N,with a case depth minimum of 0.o10in. (0.25 mm). If provided，swivel pads need not behardened.
4.7 Adjusting Screw
Adjusting screw located at the end of handle shallhave a minimum hardness of 30 HRC.
4.8 Marking
Pliers shall be marked in a plain and permanentmanner with the manufacturer’s name or with a trade-mark of such known character that the source ofmanufacture and country of origin can be readily deter-mined. Marking shall be as permanent as the normallife expectancy of the pliers,providing the surface hasnot been subjected to a fretting or abrading action,and be capable of withstanding the cleaning normallyexperienced during its intended use.
4.9 Finish
4.9.1 Appearance. Surfaces shall be tested in ac- cordance with ASME B46.1. Surfaces shall be free from pits, nodules, burrs, and other conditions that may adversely affect performance or appearance. Ground surfaces shall have a maximum surface roughness of 200 μin. (5.1 μm) arithmetic average. Measurement of the finish shall be made with a measuring instrument using a cutoff length of 0.03 in. (0.8 mm).
4.9.2 Coating. Coating shall be adherent, smooth, continuous, and free of pits, blisters, nodules, oxide scale, and any other conditions that may interfere with the protective value and serviccability of the pliers. Cadmium plate shall not be allowed. Pliers shall be coated with a supplementary rust preventative treatment.
4.10 Spring Spring shall be capable of opening the jaws to he maximum value of the respective clamping range minimum dimension as specified in the tables for the individual type and class of pliers. 4.11 Dimensions Dimensions shall be determined by measuring the pliers with jaws in the closed and locked position. The overall length measurement shall include the adjusting screw.
4.12 Workmanship Requirements within this Standard are intended to describe the best commercial quality pliers available. Pliers shall conform to the requirements of this Standard.
5 TEST PROCEDURES
5.1 Safety WARNING: MANY TESTS REQUIRED HEREIN ARE INHERENTLY HAZARDOUS, AND ADE- QUATE SAFEGUARDS FOR PERSONNEL AND PROPERTY SHALL BE EMPLOYED IN CONDUCT- ING SUCH TESTS.
5.2 Hardness Test Hardness range specified shall be tested in accordance with ASME B107.25M, para. 5.3.
