{"id":3925,"date":"2025-04-14T16:25:12","date_gmt":"2025-04-14T08:25:12","guid":{"rendered":"https:\/\/www.superfinemill.com\/?p=3925"},"modified":"2025-04-14T16:30:47","modified_gmt":"2025-04-14T08:30:47","slug":"how-does-a-fine-grinding-mill-achieve-5%ce%bcm-particle-size-distribution-and-97-yield-for-pigments","status":"publish","type":"post","link":"https:\/\/www.superfinemill.com\/vi\/how-does-a-fine-grinding-mill-achieve-5%ce%bcm-particle-size-distribution-and-97-yield-for-pigments\/","title":{"rendered":"M\u00e1y nghi\u1ec1n m\u1ecbn \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc h\u1ea1t ph\u00e2n b\u1ed1 <5\u03bcm v\u00e0 n\u0103ng su\u1ea5t 97% cho b\u1ed9t m\u00e0u nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"

M\u00e1y nghi\u1ec1n m\u1ecbn<\/a> \u0111\u1ed1i v\u1edbi b\u1ed9t m\u00e0u l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh quan tr\u1ecdng \u0111\u1ec3 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u00e2n t\u00e1n s\u1eafc t\u1ed1, c\u01b0\u1eddng \u0111\u1ed9 pha m\u00e0u v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh. K\u00edch th\u01b0\u1edbc h\u1ea1t l\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ec9 s\u1ed1 quan tr\u1ecdng c\u1ee7a s\u1eafc t\u1ed1. N\u00f3i chung, c\u1ea7n ph\u1ea3i h\u1ea1t s\u1eafc t\u1ed1<\/a> c\u00f3 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd \u1ed5n \u0111\u1ecbnh, k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t m\u00e0 kh\u00f4ng b\u1ecb k\u1ebft t\u1ee5 ho\u1eb7c k\u1ebft t\u1ee7a.
C\u00f4ng ngh\u1ec7 nghi\u1ec1n si\u00eau m\u1ecbn hi\u1ec7u qu\u1ea3 l\u00e0m gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t xu\u1ed1ng m\u1ee9c micron ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 d\u01b0\u1edbi micron. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t trong l\u1edbp ph\u1ee7, m\u1ef1c, nh\u1ef1a v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c. N\u00f3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m tinh ch\u1ebf, ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n

.<\/p>\n\n\n\n

\"pigment\"<\/figure>\n\n\n\n

B\u1ed9t m\u00e0u oxit s\u1eaft \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n, \u0111\u1ed9 b\u1ec1n \u00e1nh s\u00e1ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft tuy\u1ec7t v\u1eddi. N\u00f3 ch\u1ee7 y\u1ebfu bao g\u1ed3m b\u1ed1n lo\u1ea1i: b\u1ed9t m\u00e0u oxit s\u1eaft \u0111\u1ecf, v\u00e0ng, \u0111en v\u00e0 n\u00e2u, t\u1ea5t c\u1ea3 \u0111\u1ec1u d\u1ef1a tr\u00ean oxit s\u1eaft. Trong s\u1ed1 \u0111\u00f3, oxit s\u1eaft \u0111\u1ecf l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t.<\/p>\n\n\n\n

C\u00e1c s\u1eafc t\u1ed1 oxit s\u1eaft k\u1ebft t\u1ee7a (quy tr\u00ecnh \u01b0\u1edbt) c\u00f3 b\u1ea3n ch\u1ea5t r\u1ea5t m\u1ecbn. Tuy nhi\u00ean, trong qu\u00e1 tr\u00ecnh \u00e9p l\u1ecdc v\u00e0 s\u1ea5y kh\u00f4, l\u1ef1c van der Waals, li\u00ean k\u1ebft hydro v\u00e0 \u0111i\u1ec7n t\u00edch t\u0129nh \u0111i\u1ec7n khi\u1ebfn c\u00e1c t\u1eadp h\u1ee3p nh\u1ecf t\u1ea1o th\u00e0nh c\u00e1c t\u1eadp h\u1ee3p l\u1edbn. Ch\u00fang kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong l\u1edbp ph\u1ee7 cao c\u1ea5p \u0111\u1ec3 t\u1ea1o m\u00e0u v\u00e0 ph\u1ea3i tr\u1ea3i qua m\u00e1y nghi\u1ec1n m\u1ecbn. Hi\u1ec7n nay, c\u00e1c thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn ph\u1ed5 bi\u1ebfn bao g\u1ed3m m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c, m\u00e1y nghi\u1ec1n ph\u00e2n lo\u1ea1i kh\u00ed, m\u00e1y nghi\u1ec1n bi, m\u00e1y nghi\u1ec1n rung v\u00e0 m\u00e1y nghi\u1ec1n con l\u0103n v\u00f2ng, v.v.<\/p>\n\n\n\n

m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c <\/h2>\n\n\n\n
\"Air-Jet-Mill\"<\/figure>\n\n\n\n

M\u00e1y nghi\u1ec1n tia l\u00e0 m\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn quan tr\u1ecdng nh\u1ea5t, \u0111\u1ed9 m\u1ecbn c\u1ee7a s\u1ea3n ph\u1ea9m th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 1-45\u03bcm. <\/p>\n\n\n\n

S\u1eed d\u1ee5ng kh\u00f4ng kh\u00ed \u00e1p su\u1ea5t cao, kh\u00ed tr\u01a1 ho\u1eb7c h\u01a1i n\u01b0\u1edbc qu\u00e1 nhi\u1ec7t, s\u1ef1 gi\u00e3n n\u1edf v\u00e0 l\u00e0m m\u00e1t nhanh ch\u00f3ng t\u1ea1o ra tr\u01b0\u1eddng d\u00f2ng ch\u1ea3y t\u1ed1c \u0111\u1ed9 cao. \u0110i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y c\u00e1c h\u1ea1t v\u1eadt li\u1ec7u va ch\u1ea1m, c\u1ecd x\u00e1t v\u00e0 c\u1eaft v\u00e0o nhau trong lu\u1ed3ng ph\u1ea3n l\u1ef1c, \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t.<\/p>\n\n\n\n

S\u1ea3n ph\u1ea9m c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn, ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1eb9p, b\u1ec1 m\u1eb7t nh\u1eb5n, h\u00ecnh d\u1ea1ng \u0111\u1ec1u \u0111\u1eb7n, \u0111\u1ed9 tinh khi\u1ebft cao, ho\u1ea1t t\u00ednh cao, kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u0103ng th\u1ea5p trong qu\u00e1 tr\u00ecnh nghi\u1ec1n.
Nh\u01b0\u1ee3c \u0111i\u1ec3m: chi ph\u00ed s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb cao, \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u l\u1edbn, ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao v\u00e0 chi ph\u00ed x\u1eed l\u00fd b\u1ed9t cao.<\/p>\n\n\n\n

M\u00e1y ph\u00e2n lo\u1ea1i Alr<\/a><\/h2>\n\n\n\n
\"air<\/figure>\n\n\n\n

M\u00e1y nghi\u1ec1n ph\u00e2n lo\u1ea1i b\u1eb1ng kh\u00ed \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p kho\u00e1ng s\u1ea3n phi kim lo\u1ea1i \u0111\u1ec3 nghi\u1ec1n m\u1ecbn.
Th\u00f4ng th\u01b0\u1eddng, n\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecbn s\u1ea3n ph\u1ea9m l\u00e0 d97 = 10 \u03bcm (kho\u1ea3ng 1250 l\u01b0\u1edbi). Khi k\u1ebft h\u1ee3p v\u1edbi m\u00e1y ph\u00e2n lo\u1ea1i ch\u00ednh x\u00e1c hi\u1ec7u su\u1ea5t cao, n\u00f3 c\u00f3 th\u1ec3 t\u1ea1o ra b\u1ed9t si\u00eau m\u1ecbn v\u1edbi d97 = 5\u20137 \u03bcm.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u01b0a \u0111\u1ed3ng \u0111\u1ec1u v\u00e0o bu\u1ed3ng nghi\u1ec1n b\u1eb1ng h\u1ec7 th\u1ed1ng c\u1ea5p li\u1ec7u. N\u00f3 b\u1ecb t\u00e1c \u0111\u1ed9ng m\u1ea1nh b\u1edfi \u0111\u0129a nghi\u1ec1n quay t\u1ed1c \u0111\u1ed9 cao. \u0110\u1ed3ng th\u1eddi, n\u00f3 ch\u1ecbu l\u1ef1c ly t\u00e2m. V\u1eadt li\u1ec7u va ch\u1ea1m v\u1edbi b\u00e1nh r\u0103ng v\u00e0nh nghi\u1ec1n. N\u00f3 ch\u1ecbu nhi\u1ec1u l\u1ef1c t\u1ed5ng h\u1ee3p kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1eaft, ma s\u00e1t v\u00e0 va ch\u1ea1m. V\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c nghi\u1ec1n v\u00e0 v\u1eadt li\u1ec7u \u0111\u00e3 nghi\u1ec1n di chuy\u1ec3n \u0111\u1ebfn khu v\u1ef1c ph\u00e2n lo\u1ea1i theo lu\u1ed3ng kh\u00ed. V\u1eadt li\u1ec7u th\u00f4 v\u00e0 m\u1ecbn \u0111\u01b0\u1ee3c t\u00e1ch ra th\u00f4ng qua b\u00e1nh xe ph\u00e2n lo\u1ea1i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u1ea7n s\u1ed1.\u00a0<\/p>\n\n\n\n

m\u00e1y nghi\u1ec1n bi<\/h2>\n\n\n\n
\"ball<\/figure>\n\n\n\n

M\u00e1y nghi\u1ec1n bi l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn bao g\u1ed3m m\u1ed9t bu\u1ed3ng c\u1ed1 \u0111\u1ecbnh ch\u1ee9a \u0111\u1ea7y v\u1eadt li\u1ec7u nghi\u1ec1n v\u00e0 m\u1ed9t m\u00e1y khu\u1ea5y quay. N\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecbn c\u1ee7a s\u1ea3n ph\u1ea9m d\u01b0\u1edbi 1 \u03bcm. M\u00e1y khu\u1ea5y khu\u1ea5y v\u1eadt li\u1ec7u nghi\u1ec1n \u0111\u1ec3 t\u1ea1o ra chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng \u0111\u1ec1u, \u00e1p d\u1ee5ng l\u1ef1c va \u0111\u1eadp, l\u1ef1c c\u1eaft v\u00e0 l\u1ef1c ma s\u00e1t \u0111\u1ec3 ph\u00e1 v\u1ee1 v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

m\u00e1y nghi\u1ec1n con l\u0103n v\u00f2ng<\/h2>\n\n\n\n
\"roller-mill-2\"<\/figure>\n\n\n\n

M\u00e1y nghi\u1ec1n con l\u0103n v\u00f2ng <\/a>v\u00e0 m\u00e1y \u00e9p con l\u0103n s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 nghi\u1ec1n n\u00e9n t\u1eebng l\u1edbp \u0111\u1ec3 gi\u1ea3m k\u00edch th\u01b0\u1edbc si\u00eau m\u1ecbn. D\u01b0\u1edbi \u00e1p su\u1ea5t cao, s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t khi\u1ebfn c\u00e1c v\u1ebft n\u1ee9t h\u00ecnh th\u00e0nh v\u00e0 lan r\u1ed9ng, t\u1ea1o ra c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf v\u00e0 v\u1ebft n\u1ee9t b\u1ec1 m\u1eb7t cu\u1ed1i c\u00f9ng l\u00e0m v\u1ee1 v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

nghi\u1ec1n c\u00e1c s\u1eafc t\u1ed1 \u0111\u1eb7c bi\u1ec7t<\/h2>\n\n\n\n

S\u1eafc t\u1ed1 oxit s\u1eaft<\/strong>\uff1a
Trong qu\u00e1 tr\u00ecnh \u00e9p l\u1ecdc v\u00e0 s\u1ea5y kh\u00f4 c\u00e1c s\u1eafc t\u1ed1 oxit s\u1eaft, c\u00e1c t\u1eadp h\u1ee3p vi m\u00f4 c\u00f3 xu h\u01b0\u1edbng t\u1ea1o th\u00e0nh c\u00e1c t\u1eadp h\u1ee3p l\u1edbn h\u01a1n do l\u1ef1c van der Waals, li\u00ean k\u1ebft hydro v\u00e0 t\u01b0\u01a1ng t\u00e1c t\u0129nh \u0111i\u1ec7n. C\u00e1c t\u1eadp h\u1ee3p n\u00e0y kh\u00f4ng th\u1ec3 ph\u00e2n t\u00e1n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n c\u01a1 h\u1ecdc th\u00f4ng th\u01b0\u1eddng.
S\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n d\u1ea1ng \u0111\u0129a ho\u1eb7c d\u1ea1ng t\u1ea7ng s\u00f4i \u0111\u1ec3 x\u1eed l\u00fd b\u1ed9t m\u00e0u oxit s\u1eaft c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecbn Hegman sau:
Oxit s\u1eaft \u0111\u1ecf: 5,5\u20137,0 (m\u00e0u s\u1eabm h\u01a1n bi\u1ec3u th\u1ecb k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn h\u01a1n),
S\u1eaft oxit v\u00e0ng: 7,5,
Oxit s\u1eaft \u0111en: 7.0.<\/p>\n\n\n\n

Sau khi nghi\u1ec1n si\u00eau m\u1ecbn, c\u00e1c s\u1eafc t\u1ed1 oxit s\u1eaft \u0111\u01b0\u1ee3c t\u00e1ch k\u1ebft t\u1ee5 t\u1eeb c\u00e1c t\u1eadp h\u1ee3p l\u1edbn th\u00e0nh nh\u1ecf. Trong s\u1ea3n xu\u1ea5t s\u01a1n, ch\u1ec9 c\u1ea7n khu\u1ea5y t\u1ed1c \u0111\u1ed9 cao trong th\u1eddi gian ng\u1eafn \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecbn c\u1ea7n thi\u1ebft, gi\u1ea3m chi ph\u00ed x\u1eed l\u00fd. H\u01a1n n\u1eefa, c\u00e1c t\u1eadp h\u1ee3p s\u1eafc t\u1ed1 nh\u1ecf \u00edt c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft t\u1ee5 l\u1ea1i, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng l\u1edbp ph\u1ee7 \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

S\u1eafc t\u1ed1 Ferrite Mangan ch\u1ecbu nhi\u1ec7t m\u00e0u \u0111en:<\/strong><\/p>\n\n\n\n

Sau khi ph\u1ee7 b\u1ec1 m\u1eb7t, bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t, s\u1ea5y kh\u00f4 v\u00e0 nghi\u1ec1n, c\u00e1c h\u1ea1t m\u1ecbn c\u1ee7a s\u1eafc t\u1ed1 ferit mangan l\u1ea1i k\u1ebft t\u1ee5. S\u1ef1 k\u1ebft t\u1ee5 l\u1ea1i t\u1ea1o ra c\u00e1c h\u1ea1t th\u00f4 \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y c\u1ea3n tr\u1edf vi\u1ec7c s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u00e1c \u0111\u1eb7c t\u00ednh s\u1eafc t\u1ed1 c\u1ee7a n\u00f3.
B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n tia d\u1ea1ng \u0111\u0129a ho\u1eb7c d\u1ea1ng t\u1ea7ng s\u00f4i \u0111\u1ec3 x\u1eed l\u00fd s\u00e2u v\u00e0 nghi\u1ec1n, \u0111\u1ed9 m\u1ecbn Hegman c\u1ee7a s\u1eafc t\u1ed1 ferit mangan \u0111\u1ea1t kho\u1ea3ng 7\u20137,5. V\u1edbi kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n tuy\u1ec7t v\u1eddi, s\u1eafc t\u1ed1 c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 c\u00e1c \u0111\u1eb7c t\u00ednh quang h\u1ecdc v\u00e0 s\u1eafc t\u1ed1 c\u1ee7a n\u00f3.<\/p>\n\n\n\n

BB\u1ed9t m\u00e0u g\u1ed1m rown\uff1a<\/strong><\/p>\n\n\n\n

S\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n tia ph\u1eb3ng \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn c\u00e1c s\u1eafc t\u1ed1 g\u1ed1m m\u00e0u n\u00e2u, \u1edf \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed 7,5\u00d710^5 Pa v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u 100 kg\/h, s\u1ea3n ph\u1ea9m \u0111\u1ea1t \u0111\u01b0\u1ee3c d50 l\u00e0 4,55 \u03bcm, v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1ed1i \u0111a l\u00e0 9,64 \u03bcm.<\/p>\n\n\n\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

T\u00f3m l\u1ea1i, M\u00e1y nghi\u1ec1n m\u1ecbn \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t b\u1ed9t m\u00e0u b\u1eb1ng c\u00e1ch \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t ch\u00ednh x\u00e1c v\u00e0 t\u0103ng c\u01b0\u1eddng t\u00ednh ch\u1ea5t ph\u00e2n t\u00e1n. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 nghi\u1ec1n ti\u00ean ti\u1ebfn, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t b\u1ed9t m\u00e0u, \u0111\u1ea3m b\u1ea3o c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi \u0111\u1ed9 b\u1ec1n m\u00e0u, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n\n\n\n

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