{"id":1618,"date":"2019-05-22T02:47:32","date_gmt":"2019-05-22T02:47:32","guid":{"rendered":"http:\/\/www.meetyoucarbide.com\/single-post-learn-the-distinction-between-hss-and-carbide-in-3-minutes\/"},"modified":"2020-05-04T13:12:08","modified_gmt":"2020-05-04T13:12:08","slug":"learn-the-distinction-between-hss-and-carbide-in-3-minutes","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/learn-the-distinction-between-hss-and-carbide-in-3-minutes\/","title":{"rendered":"T\u00ecm hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa HSS v\u00e0 cacbua trong 3 ph\u00fat"},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\">\n<div>\n<div>N\u00f3i chung, vi\u1ec7c s\u1eed d\u1ee5ng cacbua trong c\u00e1c d\u1ee5ng c\u1ee5 c\u1eaft b\u1eaft \u0111\u1ea7u ph\u00e1t tri\u1ec3n v\u00e0o n\u0103m 1925. th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c d\u1ee5ng c\u1ee5 c\u1eaft kim lo\u1ea1i k\u1ec3 t\u1eeb nh\u1eefng n\u0103m 90. V\u1eadt li\u1ec7u cacbua ra \u0111\u1eddi mu\u1ed9n h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c coi l\u00e0 v\u1eadt li\u1ec7u thay th\u1ebf th\u1eb3ng cho HSS. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m tham chi\u1ebfu \u0111\u1ec3 so s\u00e1nh v\u00ec \u0111\u1ed9 d\u1ebbo dai, ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ee7 \u0111\u1ed9 c\u1ee9ng ch\u00ednh x\u00e1c \u0111\u1ec3 c\u1eaft kim lo\u1ea1i m\u1ee5c \u0111\u00edch chung, l\u00e0m cho ch\u00fang tr\u1edf th\u00e0nh c\u01a1 s\u1edf \u0111\u1ec3 so s\u00e1nh v\u1edbi xi m\u0103ng cacbua.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_4b04aed17a1b43f3ae1eecda99da5679mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<h2>Cacbua vonfram l\u00e0 g\u00ec?<\/h2>\n<div>Cacbua xi m\u0103ng l\u00e0 m\u1ed9t lo\u1ea1i b\u1ed9t cacbua kim lo\u1ea1i ch\u1ecbu l\u1eeda c\u00f3 \u0111\u1ed9 c\u1ee9ng cao k\u00edch th\u01b0\u1edbc c\u1ee1 micromet \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng th\u00eam coban, molypden, niken, v.v. v\u00e0 \u0111\u01b0\u1ee3c thi\u00eau k\u1ebft d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p su\u1ea5t cao. H\u00e0m l\u01b0\u1ee3ng cacbua \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a cacbua xi m\u0103ng v\u01b0\u1ee3t qu\u00e1 h\u00e0m l\u01b0\u1ee3ng c\u1ee7a th\u00e9p t\u1ed1c \u0111\u1ed9 cao v\u1edbi \u0111\u1ed9 c\u1ee9ng cao (HRC75\u201380) v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t.<\/div>\n<div>\u0110\u00e1ng ch\u00fa \u00fd l\u00e0 \u0111\u1ed9 c\u1ee9ng n\u00f3ng c\u1ee7a cacbua xi m\u0103ng c\u00f3 th\u1ec3 \u0111\u1ea1t 800-1000 \u0111\u1ed9. \u0110\u1eb7c t\u00ednh c\u00f3 l\u1ee3i cho t\u1ed1c \u0111\u1ed9 c\u1eaft c\u1ee7a cacbua v\u00e0 l\u00e0m cho n\u00f3 nhanh h\u01a1n t\u1eeb 4 \u0111\u1ebfn 7 l\u1ea7n so v\u1edbi th\u00e9p t\u1ed1c \u0111\u1ed9 cao v\u00e0 hi\u1ec7u qu\u1ea3 c\u1eaft cao h\u01a1n.<\/div>\n<div>Tuy nhi\u00ean, nh\u1eefng thi\u1ebfu s\u00f3t c\u1ee7a n\u00f3 c\u0169ng gi\u1ed1ng nh\u01b0 HSS. N\u00f3 c\u00f3 \u0111\u1ed9 b\u1ec1n u\u1ed1n th\u1ea5p, \u0111\u1ed9 dai va \u0111\u1eadp k\u00e9m, \u0111\u1ed9 gi\u00f2n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 rung \u0111\u1ed9ng th\u1ea5p.<\/div>\n<div>C\u00e1c h\u1ea1t cacbua wolfram, c\u00f3 k\u00edch th\u01b0\u1edbc t\u1eeb 0,2 \u0111\u1ebfn 1\u03bcm, \u0111\u01b0\u1ee3c thi\u00eau k\u1ebft v\u1edbi c\u00f4ban \u0111\u1ec3 t\u1ea1o ra m\u1ed9t kh\u1ed1i r\u1eafn. Coban \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ea5t k\u1ebft d\u00ednh \u0111\u1ec3 \u201ck\u1ebft d\u00ednh\u201d c\u00e1c h\u1ea1t l\u1ea1i v\u1edbi nhau. V\u1eadt li\u1ec7u n\u00e0y \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u1eaft kim lo\u1ea1i b\u1eb1ng c\u00e1ch cho ph\u00e9p t\u1ed1c \u0111\u1ed9 v\u00e0 c\u1ea5p li\u1ec7u nhanh h\u01a1n, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 d\u00e0i h\u01a1n \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 n\u00e0o \u0111\u00f3.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_844da776bbda4118b85ad294b9d53d98mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<h2>HSS l\u00e0 g\u00ec?<\/h2>\n<div>Th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, ch\u1ecbu m\u00e0i m\u00f2n v\u00e0 ch\u1ecbu nhi\u1ec7t cao. N\u00f3 c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p s\u1eafc b\u00e9n, c\u00f3 ngh\u0129a l\u00e0 n\u00f3 v\u1eabn c\u00f3 th\u1ec3 c\u1ee9ng l\u1ea1i ngay c\u1ea3 khi \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh trong kh\u00f4ng kh\u00ed trong qu\u00e1 tr\u00ecnh t\u00f4i ngu\u1ed9i v\u00e0 gi\u1eef cho b\u1ea3n th\u00e2n n\u00f3 s\u1eafc b\u00e9n.<\/div>\n<div>Tr\u00ean th\u1ef1c t\u1ebf, th\u00e9p t\u1ed1c \u0111\u1ed9 cao l\u00e0 lo\u1ea1i th\u00e9p bao g\u1ed3m t\u1ef7 l\u1ec7 cacbon v\u00e0 kim lo\u1ea1i kh\u00e1c cao. V\u1ec1 m\u1eb7t th\u00e0nh ph\u1ea7n, l\u00e0 \u0111\u1eb7c t\u00ednh quan tr\u1ecdng nh\u1ea5t c\u1ee7a th\u00e9p t\u1ed1c \u0111\u1ed9 cao, HSS bao g\u1ed3m vonfram, molypden, crom, vanadi, coban v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 t\u1ea1o cacbua kh\u00e1c v\u00e0 t\u1ed5ng l\u01b0\u1ee3ng nguy\u00ean t\u1ed1 h\u1ee3p kim l\u00e0 kho\u1ea3ng 10 \u0111\u1ebfn 25%. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y cung c\u1ea5p c\u00e1c \u0111\u1eb7c t\u00ednh m\u00e1y v\u00e0 c\u1eaft c\u1ed5 \u0111i\u1ec3n cho HSS, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n. \u1ede tr\u1ea1ng th\u00e1i t\u00f4i luy\u1ec7n, s\u1eaft, crom, m\u1ed9t ph\u1ea7n vonfram v\u00e0 h\u00e0m l\u01b0\u1ee3ng cacbon cao trong th\u00e9p t\u1ed1c \u0111\u1ed9 cao t\u1ea1o th\u00e0nh cacbit c\u1ef1c k\u1ef3 c\u1ee9ng, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a th\u00e9p (ph\u1ea1m vi \u0111\u1ed9 c\u1ee9ng rockwell HRC64\u201368).<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_7064e6653e1a4ab091afc6103f245b35mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<div>B\u00ean c\u1ea1nh \u0111\u00f3, t\u1ea5t c\u1ea3 ch\u00fang ta \u0111\u1ec1u bi\u1ebft r\u1eb1ng HSS \u0111\u01b0\u1ee3c ghi nh\u1eadn v\u1ec1 \u0111\u1ed9 c\u1ee9ng n\u00f3ng, \u0111\u00f3 l\u00e0 do vonfram h\u00f2a tan trong ch\u1ea5t n\u1ec1n. \u0110\u1ed9 c\u1ee9ng n\u00f3ng c\u1ee7a th\u00e9p t\u1ed1c \u0111\u1ed9 cao c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 650 \u0111\u1ed9. Vonfram, molypden, crom, vanadi, coban v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 ch\u1ee9a cacbua kh\u00e1c c\u00f3 th\u1ec3 gi\u00fap duy tr\u00ec \u0111\u1ed9 c\u1ee9ng cao khi c\u1eaft \u1edf nhi\u1ec7t \u0111\u1ed9 cao (kho\u1ea3ng 500 \u00b0 C)<\/div>\n<div>So s\u00e1nh HSS v\u1edbi th\u00e9p c\u00f4ng c\u1ee5 cacbon, sau khi t\u00f4i v\u00e0 t\u00f4i luy\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, th\u00e9p c\u00f4ng c\u1ee5 cacbon c\u00f3 \u0111\u1ed9 c\u1ee9ng cao \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. nh\u01b0ng khi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n 200 \u00b0 C, \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p d\u1ee5ng c\u1ee5 cacbon gi\u1ea3m m\u1ea1nh. H\u01a1n n\u1eefa, \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 cacbon \u1edf 500 \u00b0 C s\u1ebd gi\u1ea3m xu\u1ed1ng m\u1ee9c t\u01b0\u01a1ng t\u1ef1 c\u1ee7a tr\u1ea1ng th\u00e1i \u1ee7, c\u00f3 ngh\u0129a l\u00e0 kh\u1ea3 n\u0103ng c\u1eaft kim lo\u1ea1i c\u1ee7a n\u00f3 b\u1ecb m\u1ea5t ho\u00e0n to\u00e0n. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng th\u00e9p c\u00f4ng c\u1ee5 cacbon l\u00e0m d\u1ee5ng c\u1ee5 c\u1eaft. Trong khi th\u00e9p t\u1ed1c \u0111\u1ed9 cao b\u00f9 \u0111\u1eafp nh\u1eefng thi\u1ebfu s\u00f3t quan tr\u1ecdng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 cacbon do \u0111\u1ed9 c\u1ee9ng n\u00f3ng t\u1ed1t c\u1ee7a n\u00f3.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_b17fb56c0354497bb87faead8e0b8545mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<h2>S\u1ef1 so s\u00e1nh<\/h2>\n<div>Th\u1ee9 nh\u1ea5t, N\u00f3 duy tr\u00ec \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n HSS, v\u00ec v\u1eady n\u00f3 c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 c\u1eaft nhanh h\u01a1n. M\u1eb7c d\u00f9 n\u00f3 \u0111\u1eaft h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi HSS, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i th\u1eddi gian s\u1eed d\u1ee5ng g\u1ea5p 5-10 l\u1ea7n t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng, \u0111i\u1ec1u n\u00e0y l\u00e0m cho t\u1ed5ng chi ph\u00ed th\u1ea5p h\u01a1n.<\/div>\n<div>T\u1eeb quan \u0111i\u1ec3m c\u1ee7a \u0111\u1eb7c t\u00ednh gia c\u00f4ng, c\u00e1c d\u1ee5ng c\u1ee5 nghi\u00eang cacbua c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 sau \u0111\u00f3 ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc c\u1ee7a ph\u00f4i t\u1ed1t h\u01a1n nhi\u1ec1u so v\u1edbi HSS.<\/div>\n<div>M\u1eb7c d\u00f9 c\u00e1c s\u1ea3n ph\u1ea9m cacbua t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1n k\u00e9m, nh\u01b0ng ng\u01b0\u1eddi ta v\u1eabn ph\u00e1t minh ra c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 gi\u1ea3m thi\u1ec3u chi ph\u00ed cho v\u1eadt li\u1ec7u, \u0111\u00f3 l\u00e0 ch\u1ec9 s\u1eed d\u1ee5ng cacbit tr\u00ean \u0111\u1ea7u ho\u1eb7c c\u1ea1nh c\u1eaft. Th\u00e2n v\u00e0 chu\u00f4i \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p c\u00f4ng c\u1ee5 c\u1ee9ng c\u1ee9ng \u00edt t\u1ed1n k\u00e9m h\u01a1n. Sau \u0111\u00f3, chi ph\u00ed t\u1ed5ng th\u1ec3 l\u00e0 \u00edt h\u01a1n \u0111\u00e1ng k\u1ec3.<\/div>\n<div>S\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 cacbua t\u0103ng d\u1ea7n trong v\u00e0i n\u0103m qua, nh\u01b0ng kh\u00e1ch quan m\u00e0 n\u00f3i, n\u00f3 v\u1eabn ch\u01b0a th\u1ec3 thay th\u1ebf HSS trong khu v\u1ef1c m\u1ee5c \u0111\u00edch l\u00e0m vi\u1ec7c chung. ch\u1ee7 y\u1ebfu l\u00e0 do c\u00e1c c\u00f4ng c\u1ee5 HSS lu\u00f4n s\u1eb5n c\u00f3 v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng ph\u00f9 h\u1ee3p v\u1edbi h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c.<\/div>\n<div>H\u01a1n n\u1eefa, cacbua r\u1ea5t kh\u00f3 m\u00e0i. V\u00ec v\u1eady, ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c mua d\u01b0\u1edbi d\u1ea1ng ph\u1ee5 ki\u1ec7n v\u00e0 thay th\u1ebf khi ch\u00fang b\u1ecb h\u1ecfng ho\u1eb7c m\u00f2n. M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 ch\u1ecbu l\u1ef1c n\u00e9n r\u1ea5t t\u1ed1t nh\u01b0ng \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a n\u00f3 r\u1ea5t th\u1ea5p. C\u00e1c \u0111\u1ea7u tip cacbua ph\u1ea3i lu\u00f4n \u1edf \u0111\u00fang \u0111i\u1ec3m c\u1ee7a bit ti\u1ec7n. Di chuy\u1ec3n \u0111i\u1ec3m c\u1eaft xu\u1ed1ng d\u01b0\u1edbi \u0111\u01b0\u1eddng t\u00e2m c\u00f3 th\u1ec3 t\u1ea1o ra l\u1ef1c cao h\u01a1n khi\u1ebfn n\u00f3 b\u1ecb t\u00e1ch r\u1eddi.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_6cfb012d1d184af4befab7b5a873c197mv2-1.png\" alt=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_8252c6fe039d4d54bd0efcfffc523286mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<div>M\u1eb7c d\u00f9 c\u00e1c d\u1ee5ng c\u1ee5 HSS kh\u00f4ng k\u00e9o d\u00e0i g\u1ea7n nh\u01b0 c\u00e1c d\u1ee5ng c\u1ee5 cacbua, nh\u01b0ng n\u00f3 c\u00f3 xu h\u01b0\u1edbng b\u1ec1n h\u01a1n v\u00e0 \u00edt gi\u00f2n h\u01a1n v\u00e0 l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c v\u1ebft c\u1eaft s\u00e2u v\u1edbi k\u00edch th\u01b0\u1edbc \u0111\u1ea7u nh\u1ecf tr\u00ean v\u1eadt li\u1ec7u c\u1ee9ng h\u01a1n. B\u00ean c\u1ea1nh \u0111\u00f3, ch\u00fang d\u1ec5 m\u00e0i h\u01a1n nhi\u1ec1u \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng b\u00ecnh th\u01b0\u1eddng. Ch\u00fang d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c m\u00e0i s\u1eafc b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u00e1nh m\u00e0i nh\u00f4m oxit.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_e9e6fa4d988e416b964aeee3ec83e163mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<div>Do \u0111\u00f3, m\u1ed9t m\u1eb9o h\u1eefu \u00edch trong vi\u1ec7c ch\u1ecdn lo\u1ea1i n\u00e0o \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e0 li\u1ec7u b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 m\u00ecnh th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh m\u00e0i hay kh\u00f4ng. C\u00e1c c\u00f4ng c\u1ee5 cacbua t\u1ed3n t\u1ea1i m\u1ed9t th\u1eddi gian d\u00e0i tr\u01b0\u1edbc khi tr\u1edf n\u00ean c\u00f9n, nh\u01b0ng r\u1ea5t nh\u1eb9 \u0111\u1ec3 quay l\u1ea1i, \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng \u0111\u00e1 m\u00e0i kim c\u01b0\u01a1ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c. N\u1ebfu b\u1ea1n \u0111\u1ed3ng \u00fd v\u1edbi vi\u1ec7c m\u00e0i s\u1eafc, c\u00e1c d\u1ee5ng c\u1ee5 cacbua s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a gia c\u00f4ng kim lo\u1ea1i cho \u0111\u1ebfn nay. X\u00e9t cho c\u00f9ng, cacbua v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi HSS trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p. khi c\u1eaft c\u00e1c v\u1eadt li\u1ec7u m\u1ec1m h\u01a1n nh\u01b0 nh\u00f4m v\u00e0 nh\u1ef1a, m\u00e1y nghi\u1ec1n HSS ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u1ee7 ti\u00eau chu\u1ea9n.<\/div>\n<\/div>\n<\/div>\n<p><!-- .vgblk-rw-wrapper --><\/p>","protected":false},"excerpt":{"rendered":"<p>In general,the use of carbide in cutting tools began development in nineteen-twenty-five. high-speed steel (HSS) is the standard for metal cutting tools since the nineteen-thirties. Carbide material came out later and is regarded as the straight substitution for HSS.It is often used as a reference for comparison because of its toughness, wear resistance, and sufficient&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"class_list":["post-1618","post","type-post","status-publish","format-standard","hentry","category-materials-weekly"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=1618"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1618\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=1618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=1618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=1618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}