国产 在线 | 日韩,精品一区二区三区的国产在线观看,亚洲国产精品日韩在线,国产视频在,青青国产成人久久91网站站,国内精品视频免费观看

ESTBLISHED1997
ISO9001 CERTIFICATED
?????? ???????? >>???????? ????? ????

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

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

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

???????? ????? ???? ???? ????? ???????? ??? ??????? ??????? ??????? ??? ??? ?????. ??????? ??? ??????? ????????? ????????? ???? ????? ???????? ????? ???? ??? ??? ????: ???????? ????????? (??-??)? ????????? ??????????? ???????? (??-???-??)? ????????? ??????????? ????????? (???????) ???????? [ ??-???-TaC- (???) -Co]? ????? ?????????? ?????? ????? ????? ??????????. ??? ???????? ????? ???? ?? ????? ?????? ????? ????? ????? ??????? ??????? ??????? ??????? ??????? ????? ????? ?????? ??????? ?????? ????? ?????? ???? ??? ??????? ???????? ????? ????? ?????? ????? ?????? ??? ???? ?? ???? ?????? ?????? ??????? ?????? ?? ??? ????? ??????? ???????? ???????? ?????. ???????? ????? ???? ?? ???? ????? ???? ?? ?????? ?? ???? ????? ?? ??????? ??????? ???????? ???? ???? ???? ????.

???????? ????? ???? ??????
1. ?????. ???????? ????? ???? ???? ????? ?????? ????? ?? ???? ??? HRA85 ~ 93? ??? ????? ?? ???? ?? ???????? ???? ????? ??? ????? ??? ????? ???????? ????? ???? ???? ????? ???? ??????? ????? ????? ?? ???? ??? ????? 500 ℃? ??? ????? ????? ??????? ???? ?? 500 ℃? ?? ?????? ???? ?????. ?? 1000 ~ 1100 ℃? ????? ????? ???? ?? ???? HRA73 ~ 76.
2. ?????. ???????? ????? ???? ??? ????? ??? ??? 6000MPa? ?????? 3400MPa ~ 560OMPa. ??? ??????? ?? ???? ????? ?????? ??? 750MPa-2500MPa.
3. ????? ???????. ????? ????? ????? ???????? ????? ???? ???? ????? ??? ????? ????????? ??????? ???? ???????? ???? ????? ???? ?????? ????? ????. ??? ??? ???????? ????? ???? ??????? ?? ????? ?????? ????? ????????? ????? ????? ?????? ????? ?????? ?? ????? ???????? ????????? ???? ?? 20? ~ 30? ??? ????? ?????? ????? ???????? ?????????.
4. ?????? ??????. ???????? ????? ???? ?????? ?????? ???? ?? ???? ????? ?????? ????? ????? 15 ??? 20 ????.
5. ????? ?????? ?????. ????? ?????? ????? ?? ???????? ????? ???? ?? (4.5 ~ 6.21) * 10 ^ -6 / ℃ (?? 0 ℃ ~ 300 ℃)? ??? ????? ????? ?????? ????? ?? ????? ???????? ????????? ?? ????? ???????? ???? ????? ???.
6. ???????? ????? ???? ???? ????? ????? ?????? ???? (4 ~ 7) x105mpa. ????? ???? ?? ???? ????? ?????? ??? ???? ????. ??????? ??????? ?? ????? ???????? ????????? ?? 0.14 ~ 0.21 ??? / (?? · ℃ · ?)? ???? ?? ????? ?????? ????? 1 ~ 2 ????. ???????? ???????? ??? ????? ???? ??????? ??? ?????? ????? ?? ???? ?????? ?? ??????? ??????? ????? ?????????? ????? ??????? ??????? ????? ??? ?? ???? ??? ???? ??????? ???????.

???????? ????? ???? ???? ??? ?????? ????? ?????? ????? ????? ?????? ?????? ?????? ????? ????? ???????? ??????? ????? ?????? ???????? ????? ?????? ????? ?? ??????????? ?? ????? ??????? ?????? ???????? ??????? ???????? ?????? ??????? ?????? ?? ???????? ???????????.

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

1.????? ????????
2.????????? ?????? ??????
3.???????? ????? ??????
4.????? ????? ????????
5.???????? ????? ?????


??????????? ?????? ?? ???????? ????? ??????? ?????? ??????? ???? ?? ???????? ?? ????? ?????? ????????? ????? ???????? ????? ??????? ???????? ????? ?? 20 ????. ??? ??? ???? ?? ????????? ???? ???????? ?? ??? ??????? ?? ??????? ?? ??????-- ?????????? ??? ?? ????: sales@chinatungsten.com

Address: 3F, No.25 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China
Phone:+86-592-5129696,+86-592-5129595;Fax:+86-592-5129797;Email:sales@chinatungsten.com
Certified by MIIT:閩B2-20090025 閩ICP備05002525號-1
Copyright?1997 - ChinaTungsten Online All Rights Reserved