Quality testing method for carbide saw blades

Many users do not know how to check the quality of the carbide saw blade. The quality of the saw blade can be detected in addition to the quality of the use. It can be detected in the case of unused, mainly from the Angle of steel plate, wire, grinding teeth and so on.

1. Check the surface smoothness of the substrate steel plate, check the hole of the saw blade with plug gauge, or watch whether the hole has a completely touching surface than the knife, check the flatness of the saw blade or billow and pot shape with knife edge ruler, check the end jump meter, tooth base whether oxide or burr, test hardness uniformity, rust spot and other targets with hardness tester.

2. Check the flow of welding wire, welding strength, welding burn oxide should not exceed the tool back groove, welding tooth alloy yaw degree, between the bottom of the rear Angle and the matrix as the alloy width is very low should not be less than 1.2mm, whether there is a crack, against any compression test alloy welding firmness.

3. Detection of gear grinding mill plane of A and B two side used on table view to moderate (by exterior touch needle) is suitable for flat touch, detect lientang Angle, lateral anterior horn used by the table touch, table shows how much depends on the thickness of the alloy with dial gauge to check, can only view the tooth thickness, but saw its most pot type or heavy type parameter must be bad, good way to jump instrument is precise inspection standard is always end, Also check the tooth surface smoothness, such as visible grinding wheel traces, the durability of the knife must be poor, can not see two knife surface, accurate detection still need to be polished after the Angle is true. Angle of view, after not allowed after the Angle or the blade Angle radian or significant wheel trace, as two sides diameter jumping around the teeth do not allow the right high left low or right high left low, generally with diameter detecting instrument, when the naked eye to see the main cutting edge to the human body are not allowed to see any white line, the priests, when feel clear with visual testing of significant edge belt. There are no two blades. In China, hand motor or mechanical automaton is still used for grinding rake Angle. When the rake Angle or rake Angle is grinded, the grinding wheel is usually pressed when the rake Angle or rake Angle is grinded, forming the main reason that the obtuse Angle of the main blade causes the tool is not durable.