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| Diamond knife the craft choice of the head |
Grain the choice of the degree
Diamond grain the degree be thick and is one grain degree, saw a slice of knife
head sharp, saw to slice efficiency Gao, but diamond agglomeration of anti- curved
the strength descend;Diamond grain the degree be thin or thick thin mixture, saw
a slice of knife head an enduring degree Gao, but the efficiency be low.Choice
diamond grain degree is 50/60 eyes be feater.
The diamond distribute the choice of density
When diamond density from low arrive high variety, saw a slice of sharp and
saw to slice an efficiency gradual descend, but service life gradual extension;But
the density lead Gao, sawing a slice will change bluntness.But the adoption low
density, thick grain degree, efficiency would then exaltation.Make use of knife each
part of head while saw slice of dissimilarity function, adoption dissimilarity density
(in the 3 F or more layer can adoption in the center lower density), saw to slice
the knife head in the process work up the formation in the center cave slot, be
advantageous to prevent°froming sawing a slice to be partial to put.
The choice of strength
Lead Gao of the strength will make crystal not easy broken up, whet a grain
while use drive throw light, the sharp degree descend and cause tool function
depravation;When diamond strength wasn’t enough, easy after being pound at
broken up, and is hard to carry to slice to pare heavy responsibility.Past should
choice strength at 130~140 N.
The choice glued knot mutually
For the marble, the material is a soft stone material, request knife the
mechanics function of the head be opposite and a little lower, can choose to
glue knot with the copper Ji.But the copper Ji glue a knot to burn knot
temperature low, the strength, degree of hardness be lower, the tenacity be
higher and combine strength with diamond low.While joining carbonization
Wu(WC), make framework metals by WC or W2 C, go together with with just
the right amount of cobalt with the exaltation strength, degree of hardness
and combine characteristic, and join a little amount the melting point be low
and the degree of hardness low Cu, Sn, Zn etc. metals make to glue knot
mutually.The lord add a composition grain a degree should thin add a
composition grain a degree at 200 eyes should thin at 300 eyes.
The choice burned a knot craft
Because the temperature go up, foetus body of fine turn a degree exaltation,
anti- curved strength also immediately exaltation, and along with heat
preservation time of extension, the anti- of the blank foetus body and diamond
agglomeration curved strength first exaltation behind lower, can choice burn
knot 120 s under 800 ℃ craft to satisfy function request.
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