{"id":20728,"date":"2021-09-01T08:39:16","date_gmt":"2021-09-01T08:39:16","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20728"},"modified":"2021-09-01T08:39:16","modified_gmt":"2021-09-01T08:39:16","slug":"what-causes-the-breakage-of-cemented-carbide-precision-progressive-dies%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/cai-gi-nguyen-nhan-su-vo-cua-xi-mang-cacbua-do-chinh-xac-tien-bo-khuon%ef%bc%9f\/","title":{"rendered":"Nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra s\u1ef1 ph\u00e1 v\u1ee1 c\u1ee7a qu\u00e1 tr\u00ecnh ch\u1ebft d\u1ea7n d\u1ea7n ch\u00ednh x\u00e1c cacbua xi m\u0103ng\uff1f"},"content":{"rendered":"
Khu\u00f4n d\u1eadp ti\u1ebfn b\u1ed9 l\u00e0 \u0111\u1ea1i di\u1ec7n c\u1ee7a khu\u00f4n d\u1eadp ch\u00ednh x\u00e1c. \u0110\u1eb7c t\u00ednh c\u1ee7a n\u00f3 l\u00e0 t\u1ed1c \u0111\u1ed9 cao, hi\u1ec7u qu\u1ea3 cao v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao l\u00e0m cho n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t v\u00e0 ch\u1ebf t\u1ea1o c\u00e1c b\u1ed9 ph\u1eadn \u0111i\u1ec7n t\u1eed vi m\u00f4 ch\u00ednh x\u00e1c, v\u00e0 ng\u00e0y c\u00e0ng nhi\u1ec1u b\u1ed9 ph\u1eadn v\u1eeba v\u00e0 l\u1edbn c\u0169ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng khu\u00f4n \u0111\u00fac ch\u00ednh x\u00e1c. Tuy nhi\u00ean, c\u00e1c y\u00eau c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 ch\u00ednh x\u00e1c cao, nh\u1ecf v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn n\u00e0y c\u0169ng \u0111\u1eb7t ra th\u00e1ch th\u1ee9c \u0111\u1ed1i v\u1edbi s\u1ee9c b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n. M\u00f2n ch\u1ebft s\u1ebd l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a s\u1ea3n ph\u1ea9m v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n ch\u1ebft. Vi\u1ec7c d\u1eebng nghi\u1ec1n ho\u1eb7c \u0111\u1ee9t g\u00e3y s\u1ebd l\u00e0m tr\u00ec ho\u00e3n gi\u1edd l\u00e0m vi\u1ec7c, gi\u1ea3m hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t v\u00e0 t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t. Do \u0111\u00f3, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u1ee7a khu\u00f4n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c gi\u1ea3m chi ph\u00ed v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n
V\u1eadt li\u1ec7u khu\u00f4n l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n. C\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn h\u1ecfng khu\u00f4n, bao g\u1ed3m c\u1ea5u tr\u00fac khu\u00f4n, c\u00f4ng ngh\u1ec7 gia c\u00f4ng khu\u00f4n v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c c\u1ee7a khu\u00f4n, nh\u01b0ng trong ph\u00e2n t\u00edch cu\u1ed1i c\u00f9ng, y\u1ebfu t\u1ed1 tr\u1ef1c ti\u1ebfp d\u1eabn \u0111\u1ebfn m\u00f2n khu\u00f4n v\u00e0 h\u1ecfng h\u00f3c l\u00e0 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a b\u1ea3n th\u00e2n v\u1eadt li\u1ec7u. V\u1eadt li\u1ec7u cacbua xi m\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong khu\u00f4n d\u1eadp ti\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00ec \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 d\u1ebbo dai cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao. V\u1edbi s\u1ef1 c\u1ea3i thi\u1ec7n v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u1eadp, \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n d\u1eadp v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a khu\u00f4n d\u1eadp ti\u1ebfn ch\u00ednh x\u00e1c, con ng\u01b0\u1eddi ng\u00e0y c\u00e0ng c\u00f3 y\u00eau c\u1ea7u cao h\u01a1n \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u cacbua xi m\u0103ng.<\/p>\n\n\n\n
C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc \u0111ang nghi\u00ean c\u1ee9u c\u01a1 ch\u1ebf h\u01b0 h\u1ecfng m\u00f2n, nguy\u00ean nh\u00e2n v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a khu\u00f4n \u0111\u00fac cacbua xi m\u0103ng t\u1eeb nhi\u1ec1u g\u00f3c \u0111\u1ed9 kh\u00e1c nhau. H\u1ea7u h\u1ebft trong s\u1ed1 h\u1ecd nghi\u00ean c\u1ee9u ph\u00e2n lo\u1ea1i cacbua xi m\u0103ng t\u1eeb quan \u0111i\u1ec3m c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 v\u0129 m\u00f4 b\u00ean ngo\u00e0i ch\u1ebft h\u1ecfng.<\/p>\n\n\n\n
Trong b\u00e0i b\u00e1o n\u00e0y, c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 c\u1ed1 \u0111\u1ee9t g\u00e3y c\u1ee7a khu\u00f4n \u0111\u00fac li\u00ean k\u1ebft cacbua xi m\u0103ng wc2co \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u t\u1eeb quan \u0111i\u1ec3m vi m\u00f4 th\u00f4ng qua th\u1eed nghi\u1ec7m kim lo\u1ea1i h\u1ecdc v\u00e0 k\u1ebft h\u1ee3p v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a b\u1ea3n th\u00e2n v\u1eadt li\u1ec7u<\/p>\n\n\n\n
Cacbua xi m\u0103ng Wc2co l\u00e0 v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p bao g\u1ed3m cacbua kim lo\u1ea1i ch\u1ecbu l\u1eeda v\u00e0 coban kim lo\u1ea1i ngo\u1ea1i quan \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch luy\u1ec7n kim b\u1ed9t. Coban l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean t\u1ed1 nh\u00f3m s\u1eaft. N\u00f3 l\u00e0 m\u1ed9t kim lo\u1ea1i xi m\u0103ng \u0111\u1ec3 t\u1ea1o ra cacbua xi m\u0103ng. Do kh\u1ea3 n\u0103ng b\u00f4i tr\u01a1n v\u00e0 b\u00e1m d\u00ednh t\u1ed1t c\u1ee7a CO v\u1edbi WC pha c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng h\u00f2a tan l\u1edbn c\u1ee7a WC pha c\u1ee9ng trong CO, cacbua xi m\u0103ng wc2co c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh tuy\u1ec7t v\u1eddi nh\u01b0 c\u01b0\u1eddng \u0111\u1ed9 cao, \u0111\u1ed9 c\u1ee9ng cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao. \u0110\u1ed9 b\u1ec1n c\u1ee7a cacbua xi m\u0103ng cao h\u01a1n nhi\u1ec1u so v\u1edbi \u0111\u1ed9 b\u1ec1n c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n \u0111\u01a1n l\u1ebb. \u0110\u1ed1i v\u1edbi hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, nhi\u1ec1u h\u1ecdc gi\u1ea3 \u0111\u00e3 nghi\u00ean c\u1ee9u r\u1ea5t s\u00e2u v\u00e0 \u0111\u01b0a ra m\u1ed9t s\u1ed1 gi\u1ea3i th\u00edch l\u00fd thuy\u1ebft m\u00e0 ch\u00fang t\u00f4i c\u01a1 b\u1ea3n \u0111\u1ed3ng t\u00ecnh.<\/p>\n\n\n\n
Dawihl v\u00e0 c\u00e1c h\u1ecdc gi\u1ea3 kh\u00e1c \u1edf \u0110\u1ee9c \u0111\u00e3 \u0111\u01b0a ra l\u00fd thuy\u1ebft khung x\u01b0\u01a1ng cacbua k\u1ebft d\u00ednh v\u00e0 l\u00fd thuy\u1ebft khung x\u01b0\u01a1ng s\u1eeda \u0111\u1ed5i c\u1ee7a n\u00f3. H\u1ecd tin r\u1eb1ng trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft \u0111\u00f3ng b\u00e1nh cacbua xi m\u0103ng, c\u00e1c h\u1ea1t cacbua t\u1ea1o th\u00e0nh m\u1ed9t khung t\u1ed5ng h\u1ee3p li\u00ean k\u1ebft v\u1edbi nhau, v\u00e0 kho\u1ea3ng tr\u1ed1ng c\u1ee7a khung \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y b\u1edfi pha li\u00ean k\u1ebft xuy\u00ean th\u1ea5u l\u1eabn nhau. L\u00fd thuy\u1ebft khung x\u01b0\u01a1ng c\u0169ng cho r\u1eb1ng khi \u0111\u1ed9 b\u1ec1n c\u1ee7a khung x\u01b0\u01a1ng cacbua l\u00e0 \u0111\u1ee7,<\/p>\n\n\n\n
S\u1ef1 ph\u00e2n b\u1ed1 pha CO c\u00e0ng \u0111\u1ed3ng \u0111\u1ec1u th\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ee9t g\u00e3y c\u1ee7a h\u1ee3p kim c\u00e0ng cao; Khi pha \u0111\u1ed3ng c\u1ee5c b\u1ed9 r\u01a1i ra, khung x\u01b0\u01a1ng c\u1ee7a pha c\u1ee9ng s\u1ebd d\u1ec5 b\u1ecb ph\u00e1 h\u1ee7y v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a h\u1ee3p kim b\u1ecb gi\u1ea3m. Do \u0111\u00f3, h\u00e0m l\u01b0\u1ee3ng v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a pha CO c\u00f3 \u1ea3nh h\u01b0\u1edfng quan tr\u1ecdng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u1ee7a cacbua xi m\u0103ng.<\/p>\n\n\n\n
Gurland v\u00e0 c\u1ed9ng s\u1ef1. \u0110\u01b0a ra l\u00fd thuy\u1ebft m\u00e0ng v\u00e0 tin r\u1eb1ng c\u00e1c h\u1ea1t cacbua \u0111\u01b0\u1ee3c bao quanh b\u1edfi m\u00e0ng co li\u00ean t\u1ee5c, v\u00e0 m\u00e0ng co s\u1ebd \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong \u0111\u1ed9 b\u1ec1n c\u1ee7a c\u00e1c h\u1ea1t cacbua li\u1ec1n k\u1ec1 cao. L\u00fd thuy\u1ebft gia c\u01b0\u1eddng h\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u1edf Trung Qu\u1ed1c cho r\u1eb1ng \u0111\u1ed9 b\u1ec1n l\u00fd thuy\u1ebft c\u1ee7a v\u1eadt li\u1ec7u cacbua v\u00e0 co th\u1ef1c s\u1ef1 r\u1ea5t cao. Ch\u1ec9 v\u00ec m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c khuy\u1ebft t\u1eadt n\u1ee9t trong v\u1eadt li\u1ec7u, c\u01b0\u1eddng \u0111\u1ed9 th\u1ef1c t\u1ebf c\u1ee7a v\u1eadt li\u1ec7u k\u00e9m h\u01a1n nhi\u1ec1u so v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 l\u00fd thuy\u1ebft. Tuy nhi\u00ean, khi k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a hai v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh v\u00e0 tr\u1ed9n \u0111\u1ec1u, x\u00e1c su\u1ea5t xu\u1ea5t hi\u1ec7n v\u1ebft n\u1ee9t c\u1ee7a hai nh\u00f3m s\u1ebd t\u0103ng l\u00ean g\u1ea5p \u0111\u00f4i v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 th\u1ef1c t\u1ebf c\u1ee7a hai nh\u00f3m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3. Do \u0111\u00f3, mi\u1ec5n l\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a c\u00e1c h\u1ea1t WC v\u00e0 l\u1edbp co \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, c\u01b0\u1eddng \u0111\u1ed9 l\u00fd thuy\u1ebft c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t huy h\u1ebft t\u00e1c d\u1ee5ng. Do \u0111\u00f3, c\u00e1c khuy\u1ebft t\u1eadt c\u1ea5u tr\u00fac kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi kh\u00e1i ni\u1ec7m composite, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ea1t cacbua th\u00f4, nh\u00f3m CO v\u00e0 s\u1ef1 m\u1ea5t m\u00e1t c\u1ee5c b\u1ed9 c\u1ee7a CO, s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh gia c\u1ed1 h\u1ea1t,<\/p>\n\n\n\n
\u0110\u1ed9 b\u1ec1n v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t kh\u00e1c c\u1ee7a cacbua xi m\u0103ng b\u1ecb gi\u1ea3m. T\u1eeb nghi\u00ean c\u1ee9u l\u00fd thuy\u1ebft tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng h\u00e0m l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u ph\u00e2n b\u1ed1 c\u1ee7a v\u1eadt li\u1ec7u pha CO c\u00f3 \u1ea3nh h\u01b0\u1edfng quan tr\u1ecdng \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u cacbua xi m\u0103ng wc2co. Khi c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ed3ng pha b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c thi\u1ebfu m\u1ed9t ph\u1ea7n ho\u1eb7c x\u1ebfp ch\u1ed3ng l\u00ean nhau m\u1ed9t ph\u1ea7n, c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a cacbua xi m\u0103ng c\u0169ng s\u1ebd b\u1ecb ph\u00e1 h\u1ee7y.<\/p>\n\n\n\n
Trong nghi\u00ean c\u1ee9u n\u00e0y, c\u00fa \u0111\u1ea5m b\u1ecb g\u00e3y trong \u0111i\u1ec1u ki\u1ec7n m\u00e0i m\u00f2n b\u00ecnh th\u01b0\u1eddng sau khi gia c\u00f4ng t\u1ed1c \u0111\u1ed9 cao \u0111\u01b0\u1ee3c l\u1ea5y l\u00e0m m\u1eabu. M\u1eabu n\u00e0y \u0111\u1ebfn t\u1eeb m\u1ed9t c\u00f4ng ty s\u1ea3n xu\u1ea5t linh ki\u1ec7n ch\u00ednh x\u00e1c \u1edf Th\u00e2m Quy\u1ebfn v\u00e0 v\u1eadt li\u1ec7u \u0111\u1ee5c l\u1ed7 l\u00e0 cacbua xi m\u0103ng cd750. T\u1ea1i l EO 1530vp Electronics<\/p>\n\n\n\n
C\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 th\u00e0nh ph\u1ea7n c\u1ee7a c\u00e1c m\u1eabu \u0111\u01b0\u1ee3c quan s\u00e1t b\u1eb1ng k\u00ednh hi\u1ec3n vi qu\u00e9t v\u00e0 m\u00e1y quang ph\u1ed5 n\u0103ng l\u01b0\u1ee3ng inca300. H\u00ecnh 1 l\u00e0 h\u00ecnh th\u00e1i c\u1ee7a qu\u1ea3 \u0111\u1ea5m g\u00e3y. Qua h\u00ecnh v\u1ebd c\u00f3 th\u1ec3 th\u1ea5y ph\u1ea7n mi\u1ec7ng v\u1ee1 c\u1ee7a khu\u00f4n kh\u00f4ng \u0111\u1ec1u nhau v\u00e0 ph\u1ea7n phi l\u00ea b\u00ean h\u00f4ng khu\u00f4n \u0111\u01b0\u1ee3c b\u00e0y ra. M\u1eb7c r\u1ea5t nghi\u00eam t\u00fac.<\/p>\n\n\n\n