??????? ?????? ?? ????? ???????? ?????

GB / T 4295--2008
???? ?? GB / T 4295--1993

???????? ????? ?????
????? ???????? ?????
2008-03-31publish 2008-09-01 imlement

1 ????
???? ??? ??????? ????????? ???????? ???? ????????? ?????? ??????? ????? ????? ????????? ???????? ???????? ?????? ???????? ???? ?????? (?? ?????) ???????.
????? ??? ??????? ??? ????? ????? ????? ???????? ?????????.

2 ??????? ?????????
??????? ??????? ??? ??????? ????? ?? ???? ??? ?????? ???????? ????? ?????? ????????. ??????? ??????? ???????? ?? ????? ???? ????????? ??????? (???????? ?????????) ?? ??????? ???? ???????? ??? ???? ????? ??????? ??????? ???? ????????? ?? ??? ??????? ???? ???????? ??? ?????? ??? ????? ???? ??? ??????? . ?????? ?????? ??? ???????? ????? ???? ????????? ???? ???????.
GB / T 3249 ????? ??? ??????? ?????? ???? ????? ??? ???????? ????? ????
GB / T 4324 (???? ?????)? ??????? ????????? ??????????
GB / T 5124 (???? ?????) ????? ?????
GB / T 5314 PM ????? ????? ?? ??? ?????? ??????????

3 ???????
3.1 ???? ????????
?????? ????? ????? ???????? ???? ?????? ??????? ??? ???????? ??? 16 ?????? ??? ?? ???? ??? ????? ??????:
????: FWC 100-140
FWC: ???? ????? ????? ????????? 10.0μm ~ 100-140 ???? ????? ????? ???????? ?????? 14.00μm.
3.2 ??????? ?????????
??? ??????? ????????? ??????? ????? ???????? ???????? ??????? ??????? ?? ?????? 1.
?????? 1

??????? ??????? WC	????? ???????? ???? ???? ??
	Al	Ca	Fe*	K	Mg	Mo	Na	S	Si
≥99.8	0.002	0.002	0.02	0.0015	0.002	0.01	0.0015	0.002	0.003
*?????? ??? ???????? ?? ???????? ?????? ??? ??? ?? 14μm ????? ????? ????????? ???????? Fe≤0.05?.

3.3 ??? ????????? ?????? ????? ????????? ????? ????????
????? ????? ???????? ????????? ??? ????? ????????? ?????? ?????? ?????? ???????? ????? ?? ??????? ???????? ???? ??? ??? ?????? ???????? ??? ????? ??????? ?????? 2.
??? ????? 3.4 ????? ???????? ????? ?????. ??? ??? ????? ???????? ?? <?????? ?? ???? 2μm ???? ???? 150μm? ????? ??? ???????? ???? ??2μm ~ ?????? ???? ???? ?? ???? 75μm 10μm? ????? ??? ???????? ???? ?> ????? 10μm? ???? ???? ?? 180μm ???? ??????

????	????? ?????/(m2/g)	??? ????? ??????? ??? ???????? /μm	????? ????????? /%?? ???? ??	?????? ???????/ %	????? ?? ??????? /%?? ???? ??	??????? ???? ??? ??? /%?? ??? ??
FWC02-04	＞	--	0.35	6.20~6.30	0.20	6.07
FWC04-06	1.5~2.5	--	0.30	6.15~6.25	0.15	6.07
FWC06-08	--	≥0.60~0.80	0.20	6.13~6.23	0.12	6.07
FWC08-10	--	＞0.8~1.00	0.18	6.08~6.18	0.08	6.07
FWC10-14	--	＞1.00~1.40	0.15	6.08~6.18	0.06	6.07
FWC14-18	--	＞1.40~1.80	0.15	6.08~6.18	0.06	6.07
FWC18-24	--	＞1.80~2.40	0.12	6.08~6.18	0.06	6.07
FWC24-30	--	＞2.40~3.00	0.10	6.08~6.18	0.06	6.07
FWC30-40	--	＞3.00~4.00	0.08	6.08~6.18	0.06	6.07
FWC40-50	--	＞4.00~5.00	0.08	6.08~6.18	0.06	6.07
FWC50-70	--	＞5.00~7.00	0.05	6.08~6.18	0.06	6.07
FWC70-100	--	＞7.00~10.00	0.05	6.08~6.18	0.06	6.07
FWC100-140	--	＞10.00~14.00	0.05	6.08~6.18	0.06	6.07
FWC140-200	--	＞14.00~20.00	0.05	6.08~6.18	0.06	6.07
FWC200-260	--	＞20.00~26.00	0.05	6.08~6.18	0.06	6.07
FWC260-350	--	＞26.00~35.00	0.08	6.08~6.18	0.06	6.07

3.5 ?????? ??????
???? ????? ??????? ????? ????? ????????? ?? ????? ??? ????????? ???? ?? ?????? ??? ?????. ??? ?? ???? ??? ????. ?? ???? ???? ???? ????????. 4 ????? ????????
4.1 ??????? ??????? ????? ???? ?? ??????? ??????. ????? ????? ??????? ???? ?????? ?GB / T 4324 ????.
4.2 ?????? ???????? ????? ?? ??????? ???? ?????? GB / T 5124 ??? ????. ??????? ?????? ????? ?? ???? ??? ????? ??? ??????? ????? ???????? ???????. ????? ????????? ?????? ?GB / T 4324 ??? ????. ??? ??????? ?? ????? ????? ???????? ?? ????? ????? ???????? ?GB / T 3249 ?. ????? ?? ????? ????? ???????? ??? ???? ?GB / T 13390 ??.
4.3 ?????? ??? ?? ??? ??????? ???? ???????.
4.4 ???? ???? ?????? ?? ????? ??????.

5 ????? ???????
5.1 ??????? ???????
?????? ?? ???? 5.1.1 ???????? ??????? ??? ?????? ??????? ????? ???? ?????? ???? ?????? ??? ???????? ???? ????? ???? ??????.
5.1.2 ?? ???? ???? ???? ??? ?????? ??? ?????? ???????? ???? ????????? ??? ????? ????????? ???? ???? ?????? ??? ??????? ??? ?? ???? ????? ?????? ?????? ?? ???? ??? ????? ???? ?????? ?????? ????? ????? ?????? ????. ???????? ???? ???????? ???? ????? ????????? ?? ????? ??????.
5.2 ??????
?????? ????? ???? ?????? ??? ?????? ?? ???? ?? ??? ??????? ???????? ?? ????? ???????? ????? ?????? ??? ????? ????? ???? ?? ????? ????? ?????? ?? ???? ???????.
5.3 ?????? ??????? ???? ???????
?????? ?????? ?????? ???? ?? ??????? ?? ?????? 3.

 

????? ????????	??? ???????	??? ??? ????????	??? ????? ???????? ???
??????? ?????????	????? ?? ???? ???? ?????? GB / T 5314	3.2	4.1
??? ????????? ?????? ????? ????????? ????? ????????	????? ?? ???? ???? ?????? GB / T 5314	3.3	4.2
?????	????	3.4	4.3
???? ??????	????	3.5	4.4

50.4 ????? ???????? ?????? ??????? ????????? ?????? 5.4.1 ??? ??? ???? ???? ??? ?? ????? ???? ?? ???????? ?? ?????? ????? ?????? ????????. ??? ???? ????? ???????? ?? ???? ???? ?? ?????? ??? ?????. 5.4.2 ??? ??????? ?????? ?????? ?????? ?????? ??????? ?????? ????? ?? ??????? ???????? ???? ??? ??? ?????? ???????? ???? ??????? ??? ?????? ???? ?? ???????? ?? ?????? ??? ??? ????????. ??? ???? ????? ???????? ?? ???? ???? ?? ?????? ??? ?????. 5.4.3 ??? ?????? ??????? ??? ?????? ?? ??? ??????. ???? ????? 5.4.4 ??? ??????? ??? ?????? ?? ??? ??????.

??? ??? ???? ?? ????? ?? ????? ????? ????????? ??? ????? ?? ??????? ??? ?? ???? ?????? ??????????: sales@chinatungsten.com or by telephone: +86 592 5129696.

 

???? ?? ?????????>>

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