磨料是磨具起磨削作用的主要因素，我厂主要成产氧化铝和碳化硅两大系列的磨具。
The abrasive is the essential element the enables a Abra-sive products to have a grinding action.the Abrasive products of JU NAN GRINDiNG WHEEL FACTORY basically consist of two serieses.The Aluminium Oxide and silicon-carbon.

磨料 Abrasive	代号 code	用途 Application
棕刚玉 Brown Aluminium oxide	GZ(A)	加工高抗张强度的金属:碳素钢、硬青铜和可锻铸铁等。 For processing the high tensile metals:carbon stell common alloy stell,hard bronze forgeable castiron.etc.
白刚玉 White Aluminium oxide	GB(WA)	合金刚、粹火钢及工具钢的精磨 For finishing the alloy steel .chilled steel and chised tool steel
黑碳化硅 Black silicom-carbide	TH(C)	加工抵抗张强度的金属、非金属材料：灰铸铁、黄铜、皮革、硬橡胶等。 For processing the low tensile metals and nonmetalic materials:grey cast iron.copper,leather,hard rubber,etc
绿碳化硅 Green silicon-carbide	TL(GC)	加工硬质石材、玻璃等。 For processing the rigid , stone materials , giass etc.

    砂轮硬度的选择SELECTION OF GRING WHELLS'HARDNESS
    硬度分为七大级、十四小级，用户可根据加工工件的要求来选择适用的硬度。
    Hardness including 7 big levels and 14 small levels,A suitable hardness of grinding wheel should be selected in accordance with the works to beprocessed.
    基本原则：工件较硬的选择较软的砂轮，工件较软的选用较硬的砂轮。
    Basal rule:The hard workpieces use soft grinding wheels.The soft workpieces use hard ones.

我国目前砂轮硬度等级及新、老代码对照表
The comparative of grinding wheels'hardness levels and new,old codes in our country at present.

硬度等级 Hardness grade	超软 Extrasoft	软 soft	中软 Medoiumsoft	中 Medoium	中硬 Mediumhard	硬 hard	超硬 Extrahard
老代号OldCode 新代号NewCode	CR F	R1 R2 R3 G H J	ZR1 ZR2 K L	Z1 Z2 M N	ZY1 ZY2 ZY3 P O R	Y1 Y2 (S)(T)	CY (Y)

砂轮结合剂的选择 Selection of grinding wheel'bond
	结合剂Bond	老代号OldCode	新代号NewCode
	陶瓷结合剂Vitrified	A	V
	树脂结合剂Resin	S	B

    磨具的特征标志的书写方法
    CHARACTER OF ABRASIVE PRODUCTS
    磨具的特征标志有形状、尺寸、磨料、粒度、硬度、组织、结合剂等，如：
    The Character of a abrasive products includes the shape,dimension,abrasive gritno,hardness,sturcture and Bond,and is described as the following:

N	3003232	A	60	P	6	V
形状 Shape	尺寸 Dimension	磨料 Abrasive	粒度 Grain size	硬度 Hardness	组织号 Struture	结合剂 Binder