6
、
Saw Band
46
6.3 Grind in period of saw band
⚫
1.New saw band must go through Gring in period,and the Grind in period is one of the
effective way to protecting the early damage of saw band.
⚫
2.The Sawing Speed in the Grind In Period is 1/3-2/3 of normal.
⚫
3.The Cutting Rate in the Gring In Period 1/4-1/3 of normal.
⚫
4.Reasonable Grind In Period must be to finishing 5-10 pcs work piece for example
φ
4in(100mm )material.
6.4
The main reason of impact on using life
⚫
1.Tension is too large
、
Saw Band sudden change in the entrance of Guide Arm(Fixed
guideArm)will likely lead to broken of Saw Band.
⚫
2.If the selection of sawing speed and(or)cutting rate is inappropriate will lead to
Sawtooth broken.
⚫
3.The machine vibration will likely lead to sawtooth broken too.
⚫
4.The workpiece containing impurities will likely lead to sawtooth broken too.
6.5 Efficiency of Sawing
Loading Test according to the standard of JB/T4328.4-2002:
Material:steel45(GB standard).
Diameter:
φ
150mm.
Speed of Sawing:
≤
230ft/min.
Efficiency of Sawing: 12.4sqin/min
Efficiency of Sawing
（
cm
2
/min
）
=Area of workpiece
（
sqin
）
/Broken Time
（
min
）
.
95cm
2
/min is available for thia model according to testing.
