Cutting the material
.1机械锯割
Mechanical sawing.
.1.1弓锯床用于切割扁钢、圆钢和各种型钢。机械锯割时,可将材料用夹具束成一起再起锯。常用的型钢可利用螺栓和压板或专用夹具夹紧的方法。
1.1 hacksaw machine used to cut flat steel, round steel and all kinds of steel. When mechanical sawing, but the material use jig bundle together into a back saw. Commonly used steel available bolt and plate or special fixture clamping method.
.1.2 锯割下料时,常用各种型材的锯削下料工艺留量参见表。
1.2 sawing blanking, all kinds of commonly used profiles of saw cutting blanking technology allowance see table.
。
A 圆钢、方钢、钢管的锯削下料工艺留量
直径或边距离d | 切口完度B mm | 工件长度mm | 夹 头 mm | ||||||
≤50 | >50- 200 | >200- 500 | >500- 1000 | >1000- 5000 | >5000 | ||||
mm | 端面工艺留量变2a(mm) | ||||||||
<30 | 弓 锯 | 3 | 2 | 2 | 3 | 4 | 5 | 6 | 15 |
>30-80 | 2 | 3 | 4 | 5 | 6 | 8 | |||
下料板限偏差 | <±a/4 |
高度×边长
H×b
mm | 切口宽B (用圆锥片) mm | 工件长度mm | ||
≤1000 | >1000-5000 | >5000 | ||
端面工艺留量2a(mm) | ||||
<100×68 | 7 | 3 | 5 | 7 |
100×68-630×190 | 5 | 10 | 15 | |
下料极限偏差 | <±a/4 |
.1.4 锯割速度不能过快或过慢,推据时压力不能过大,否则容易折断锯条。
.2 砂轮切割
.2.1 砂轮切割机用于酿酒设备切割圆钢和异型钢管、角钢、扁钢等各种型钢。
.2.2 切割各种型材宜单件切割,不能几件或多件束在一起。
.2.3 砂轮下料时,常用各种型材的切割下料工艺留量参见表。
直径或对边距离
mm | 切口宽B mm | 工件长度mm | |||
≤1000 | >1000-5000 | >5000 | |||
端面工艺留量2a(mm) | |||||
<100 | 4 | 3 | 5 | 7 | |
>100-150 | 6 | 4 | 6 | 8 | |
下料极限偏差 | <±a/4 |
. 2.4 will be cutting the profile in a convertible clamp, the drive motor through a belt drive wheel card for cutting, cutting speed is controlled by control handle. Operation to smooth uniform, can't too hard, so as not to overload or grinding wheel split. Operating middleman should stand in grinding wheel profile, are not allowed to be opposite the operation.