订购指南 精工细琢 专业品牌 |
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350x40x127 |
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磨料 |
粒度 |
结合剂 |
组织号 |
制法 |
型状 |
缘形 |
尺寸(dxtxh) |
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磨料粒度: |
grit |
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精度是用来表示磨料颗粒几何尺寸的大小,其选择 |
grit
is designated to represent the geometrical size of |
依据主要是加工工件所需要的表面粗糙度,同时也需 |
abrasive grain.the grit size is chosen for customer"s |
考虑其他一些因素.以外圆磨为例,常用粒度与表面 |
required surface finish as well as other conditions.for |
糙度有下面的大致关系: |
example,in cylindricai grinding,there is relationship |
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between grit and surface finishes listed as bellow; |
粒度 |
36-46 |
54-60 |
70-80 |
90-100 |
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grit |
36-46 |
54-60 |
70-80 |
90-100 |
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粗糙度 |
ra 1.6 |
ra 0.8 |
ra 0.4 |
ra 0.2 |
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finish |
ra 1.6 |
ra 0.8 |
ra 0.4 |
ra 0.2 |
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●粗料度的磨料适用于磨削: |
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●use
coarse grit: |
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1)材质较软,延伸率大以及类似软铁和有色金属等 |
1.for
soft,ductile,stringy material such as softsteel |
材料 |
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and
nonferrous material |
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2)进给量大,磨削速度要求高的场合. |
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2.for
rapid stock removal,high grinding speed |
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3)表面粗糙度要求不高的场合. |
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3.where finish is not important |
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4)磨削接触面大的场合. |
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4.for
large areas of contact |
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●细粒度的磨料适用于磨削: |
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●use
fine grit: |
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1)硬度较高以及类似高碳工具钢,硬质合金钱类的金 |
1.for
hard,brittle materials such as hard tool steels, |
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属材料和玻璃等脆性材料. |
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cemented carbide and glass. |
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2)表面粗糙度及精度要求高的场合. |
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2.for
fine finishes |
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3)磨削接触面小的确场合. |
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3.for
small areas of contact |
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4)工件半径或弧度小的场合. |
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4.for
holding small corner radii |
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硬度: |
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grade: |
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e f g
h i j k l m n o p q r |
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e f g
h i j k l m n o p q r |
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软----------------------硬 |
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soft------------------hard |
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砂轮的硬度是指磨料之间的结合度,砂轮中结合 |
the
grade indicates the relative holding power of the |
剂量的多少决定了砂轮的硬度大小.用户需根据具 |
bond
which holds abrasive grains in a wheel.ln general, |
本的磨削(如进刀量,粗糙度,材质)要求来灵活选 |
with
a given type of bond it is the mount of bond which |
择砂轮的硬度. |
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determines a wheel"s should select the grade of a wheel |
一般砂轮硬度选择的原则是: |
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based
on the grinding parameters such as feed rate. |
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finish requirements,materiials i.e..the following rules |
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should be followed with regard to grade |
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●较软的硬度 |
●use
soft grade: |
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1)进刀量大的粗磨. |
1.for
rapid stock removal |
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2)磨削接触面大的场合. |
2.for
large greas of contact |
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3)材质较硬的工件,如高硬度工具钢和硬质合金钢等. |
3.for
hard materials such as hard tool steels and carbide. |
4)工件抗热性能差,严防表面烧伤和磨削. |
4.for
heat sensitive workpieces and grinding can not has |
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burning and discoloration on surface |
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●较硬的硬度 |
●use
hard grade: |
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1)进刀量小的精磨. |
1.for
fine finish with little feed |
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2)延长砂轮寿命. |
2.for
longer wheel life |
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3)材质较软的工件. |
3.for
soft materials |
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4)磨削接触面小或窄的场合. |
4.for
small or narrow areas of contact |
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组织号: 5 6 7 8 9 10 11 12
13 |
structure: |
5 6 7
8 9 10 11 12 13 |
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密--------------- 疏 |
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close------------open |
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组织号用以表示砂轮内相邻的磨料颗粒之间的距 |
the
structure number indicates the space between neighboring |
离也就是间隙的大小.砂轮中磨料颗粒所占的体积百 |
grains which can also be called grain spacing in a wheel the |
分比,也就是其浓度的大小,决定的砂轮的组织号.陶 |
volume percentage of abrasive grains which represents the |
瓷砂轮组织号变化范围一般是从5到13,数字越小表 |
density of grain in a wheel determines the structure number |
示砂轮组织越密,数字越大表示砂轮组织越疏松.组 |
of a
wheel.the structure of vitrified sheels ranges from 5 to |
织11,12和13通常是指气孔砂轮. |
13.the smaller the number,the more closed structure the wheel |
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the
large the number,the more open structure wheel the numbers |
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11.12.13normally indicate porous wheels. |