{"id":775,"date":"2025-08-08T12:17:40","date_gmt":"2025-08-08T04:17:40","guid":{"rendered":"https:\/\/zjhaotianwelding.com\/?p=775"},"modified":"2025-08-29T11:10:23","modified_gmt":"2025-08-29T03:10:23","slug":"ppr-hot-melt-history","status":"publish","type":"post","link":"https:\/\/zjhaotianwelding.com\/vi\/ppr-hot-melt-history\/","title":{"rendered":"Ph\u00e1t tri\u1ec3n qu\u1ed1c t\u1ebf c\u1ee7a m\u00e1y h\u00e0n nhi\u1ec7t PPR"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">M\u00e1y h\u00e0n nhi\u1ec7t PPR (copolymer polypropylene ng\u1eabu nhi\u00ean) \u0111\u00e3 tr\u1edf th\u00e0nh thi\u1ebft b\u1ecb ch\u00ednh trong h\u1ec7 th\u1ed1ng \u1ed1ng nh\u1ef1a, v\u00e0 t\u1eeb khi ra \u0111\u1eddi v\u00e0o th\u1eadp ni\u00ean 1970, ch\u00fang \u0111\u00e3 tr\u1edf th\u00e0nh thi\u1ebft b\u1ecb ch\u1ee7 \u0111\u1ea1o trong ng\u00e0nh c\u00f4ng tr\u00ecnh \u1ed1ng d\u1eabn to\u00e0n c\u1ea7u. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ch\u00fang, k\u1ebft h\u1ee3p c\u00e1c \u0111\u1ed9t ph\u00e1 trong khoa h\u1ecdc v\u1eadt li\u1ec7u, \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng v\u00e0 c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 m\u00f4i tr\u01b0\u1eddng, \u0111\u00e3 thay \u0111\u1ed5i s\u00e2u s\u1eafc ng\u00e0nh c\u00f4ng nghi\u1ec7p k\u1ebft n\u1ed1i \u1ed1ng d\u1eabn to\u00e0n c\u1ea7u.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">1. Ngu\u1ed3n g\u1ed1c c\u00f4ng ngh\u1ec7 v\u00e0 n\u1ec1n t\u1ea3ng th\u1ecb tr\u01b0\u1eddng qu\u1ed1c t\u1ebf<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>L\u00e3nh \u0111\u1ea1o \u0111\u1ed5i m\u1edbi c\u1ee7a aquatherm \u0110\u1ee9c<\/strong>\n<ul class=\"wp-block-list\">\n<li>N\u0103m 1973, c\u00f4ng ty aquatherm c\u1ee7a \u0110\u1ee9c \u0111\u00e3 ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn PP-R \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi. N\u0103m 1978, c\u00f4ng ty n\u00e0y \u0111\u00e3 ra m\u1eaft v\u1eadt li\u1ec7u h\u00e0n Fusiolen\u00ae \u0111\u01b0\u1ee3c c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf, \u0111\u00e1nh d\u1ea5u m\u1ed9t b\u01b0\u1edbc ngo\u1eb7t trong vi\u1ec7c \u201cthay th\u1ebf \u1ed1ng kim lo\u1ea1i b\u1eb1ng \u1ed1ng nh\u1ef1a\u201d. V\u1eadt li\u1ec7u n\u00e0y ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 100\u00b0C, ch\u1ed1ng \u0103n m\u00f2n, c\u00f3 tu\u1ed5i th\u1ecd tr\u00ean 50 n\u0103m v\u00e0 kh\u00f4ng ph\u00e1t ra kh\u00ed g\u00e2y k\u00edch \u1ee9ng trong qu\u00e1 tr\u00ecnh h\u00e0n, nhanh ch\u00f3ng tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf cho \u1ed1ng d\u1eabn n\u01b0\u1edbc u\u1ed1ng.<\/li>\n\n\n\n<li>\u0110\u1ebfn \u0111\u1ea7u th\u1ebf k\u1ef7 21, c\u00e1c s\u1ea3n ph\u1ea9m Aquatherm \u0111\u00e3 c\u00f3 m\u1eb7t t\u1ea1i h\u01a1n 80 qu\u1ed1c gia, chi\u1ebfm th\u1ecb ph\u1ea7n tr\u00ean 70% t\u1ea1i Ch\u00e2u \u00c2u v\u00e0 B\u1eafc M\u1ef9. \u0110\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n ISO 9001 v\u00e0 h\u01a1n 100 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, Aquatherm \u0111\u00e3 kh\u1eb3ng \u0111\u1ecbnh v\u1ecb th\u1ebf chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt h\u00e0ng \u0111\u1ea7u tr\u00ean to\u00e0n c\u1ea7u.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>S\u1ef1 ph\u00e1t tri\u1ec3n qu\u1ed1c t\u1ebf c\u1ee7a c\u00e1c quy tr\u00ecnh k\u1ebft n\u1ed1i<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Ti\u00eau chu\u1ea9n h\u00f3a th\u00f4ng s\u1ed1<\/strong>C\u00e1c quy tr\u00ecnh h\u00e0n h\u1ee3p kim do Hi\u1ec7p h\u1ed9i H\u00e0n \u0110\u1ee9c (DVS) c\u00f4ng b\u1ed1 \u0111\u00e3 tr\u1edf th\u00e0nh t\u00e0i li\u1ec7u tham kh\u1ea3o qu\u1ed1c t\u1ebf ch\u00ednh th\u1ee9c. Sau \u0111\u00f3, c\u00e1c quy tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a b\u1edfi \u0110\u1ea1i h\u1ecdc Ghent (B\u1ec9): nhi\u1ec7t \u0111\u1ed9 t\u0103ng t\u1eeb 215\u00b0C l\u00ean 225\u00b0C, \u00e1p su\u1ea5t gia nhi\u1ec7t gi\u1ea3m 50%, gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng.<\/li>\n\n\n\n<li><strong>C\u00e1c \u0111\u1ed9t ph\u00e1 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn<\/strong>British Gas l\u00e0 \u0111\u01a1n v\u1ecb ti\u00ean phong trong vi\u1ec7c ph\u00e1t tri\u1ec3n thi\u1ebft b\u1ecb h\u00e0n \u0111\u1ed1i \u0111\u1ea7u ho\u00e0n to\u00e0n t\u1ef1 \u0111\u1ed9ng, gi\u1ea3i quy\u1ebft c\u00e1c \u0111i\u1ec3m ngh\u1ebdn k\u1ef9 thu\u1eadt cho \u1ed1ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh tr\u00ean 315mm. M\u1ef9 v\u00e0 \u0110\u1ee9c sau \u0111\u00f3 \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh b\u00e1n t\u1ef1 \u0111\u1ed9ng\/ho\u00e0n to\u00e0n t\u1ef1 \u0111\u1ed9ng, \u0111\u1ea1t \u0111\u01b0\u1ee3c \u201cch\u1ea5t l\u01b0\u1ee3ng h\u00e0n c\u00f3 th\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c.\u201d<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7: T\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 Tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>C\u00f4ng ngh\u1ec7 h\u00e0n \u0111i\u1ec7n th\u1ebf h\u1ec7 th\u1ee9 ba<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>H\u1ec7 th\u1ed1ng nh\u1eadn d\u1ea1ng t\u1ef1 \u0111\u1ed9ng<\/strong>: Ph\u1ee5 ki\u1ec7n h\u00e0n \u0111i\u1ec7n t\u00edch h\u1ee3p m\u00e3 v\u1ea1ch\/th\u1ebb t\u1eeb, cho ph\u00e9p th\u1ee3 h\u00e0n \u0111\u1ecdc c\u00e1c th\u00f4ng s\u1ed1 t\u1ef1 \u0111\u1ed9ng v\u00e0 \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh h\u00e0n, gi\u1ea3m thi\u1ec3u sai s\u00f3t do con ng\u01b0\u1eddi g\u00e2y ra.<\/li>\n\n\n\n<li><strong>T\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac<\/strong>C\u00e1c thi\u1ebft k\u1ebf c\u00f3 v\u00f9ng h\u00e0n r\u1ed9ng v\u00e0 \u0111\u1ed9 s\u00e2u l\u1eafp \u0111\u1eb7t k\u00e9o d\u00e0i (v\u00ed d\u1ee5: ph\u1ee5 ki\u1ec7n m\u00f4-\u0111un Georg Fischer) c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng k\u00edn kh\u00edt v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ed9ng \u0111\u1ea5t.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Chuy\u1ec3n \u0111\u1ed5i t\u1ef1 \u0111\u1ed9ng h\u00f3a thi\u1ebft b\u1ecb h\u00e0n<\/strong>\n<ul class=\"wp-block-list\">\n<li>M\u00e1y h\u00e0n t\u1ef1 \u0111\u1ed9ng ho\u00e0n to\u00e0n \u0111\u00e3 tr\u1edf th\u00e0nh xu h\u01b0\u1edbng ch\u1ee7 \u0111\u1ea1o, \u0111i\u1ec3n h\u00ecnh l\u00e0 c\u00f4ng ngh\u1ec7 \u201cSmartHeat\u201d \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 li\u00ean t\u1ee5c c\u1ee7a Vi\u1ec7n Nghi\u00ean c\u1ee9u Kh\u00ed \u0111\u1ed1t Hoa K\u1ef3 (GRI), cho ph\u00e9p ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u0111\u1ed3ng th\u1eddi gi\u1ea3m chi ph\u00ed l\u1eafp r\u00e1p xu\u1ed1ng 30%.<\/li>\n\n\n\n<li><strong>\u0110\u1ecba ph\u01b0\u01a1ng h\u00f3a b\u1edfi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t Trung Qu\u1ed1c<\/strong>Nh\u00e0 m\u00e1y H\u00e0n \u0110i\u1ec7n Zhongtong S\u01a1n \u0110\u00f4ng \u0111\u00e3 \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 \u0110\u1ee9c \u0111\u1ec3 s\u1ea3n xu\u1ea5t m\u00e1y h\u00e0n series ZTRJQ tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n DIN 8077, \u0111\u1ea1t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 \u00b11\u00b0C v\u00e0 xu\u1ea5t kh\u1ea9u sang h\u01a1n 20 qu\u1ed1c gia, bao g\u1ed3m Vi\u1ec7t Nam v\u00e0 Nga.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. B\u1ed1i c\u1ea3nh c\u1ea1nh tranh to\u00e0n c\u1ea7u: S\u1ef1 tr\u1ed7i d\u1eady v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a c\u00e1c doanh nghi\u1ec7p Trung Qu\u1ed1c<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>B\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 qu\u1ed1c t\u1ebf c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t Trung Qu\u1ed1c<\/strong>\n<ul class=\"wp-block-list\">\n<li>C\u00e1c c\u00f4ng ty nh\u01b0 Shandong Zhongtong \u0111\u00e3 chinh ph\u1ee5c th\u1ecb tr\u01b0\u1eddng \u0110\u00f4ng Nam \u00c1 v\u00e0 Trung \u0110\u00f4ng nh\u1edd l\u1ee3i th\u1ebf v\u1ec1 chi ph\u00ed (gi\u00e1 th\u1ea5p h\u01a1n 40% so v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u ch\u00e2u \u00c2u) v\u00e0 thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh (v\u00ed d\u1ee5: tay c\u1ea7m nylon ch\u1ed1ng l\u00e3o h\u00f3a, khu\u00f4n nh\u00f4m h\u1ee3p kim).<\/li>\n\n\n\n<li><strong>C\u1ea3i ti\u1ebfn xu\u1ea5t kh\u1ea9u c\u00f4ng ngh\u1ec7<\/strong>: M\u00e1y h\u00e0n h\u1ee3p kim Trung Qu\u1ed1c c\u00f3 b\u1eb1ng s\u00e1ng ch\u1ebf (v\u00ed d\u1ee5: CN201510197570) t\u00edch h\u1ee3p thang \u0111o milimet, b\u1ed9 \u0111\u1ebfm th\u1eddi gian v\u00e0 h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng \u0111\u1ed3ng b\u1ed9 hai tr\u1ee5c v\u00edt, gi\u1ea3i quy\u1ebft c\u00e1c sai l\u1ec7ch \u0111\u1ed3ng t\u00e2m trong h\u00e0n \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf v\u00e0 \u0111\u01b0\u1ee3c c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf qu\u1ed1c t\u1ebf.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Th\u00e1ch th\u1ee9c th\u1ecb tr\u01b0\u1eddng v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng chi\u1ebfn l\u01b0\u1ee3c<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>S\u1ef1 c\u1ea1nh tranh t\u1eeb \u1ed1ng composite<\/strong>\u1ede Ch\u00e2u \u00c2u, \u1ed1ng PPR g\u1eb7p ph\u1ea3i s\u1ef1 s\u1ee5t gi\u1ea3m th\u1ecb ph\u1ea7n do kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 th\u1ea5p k\u00e9m (-20\u00b0C l\u00e0 \u0111i\u1ec3m gi\u00f2n) v\u00e0 s\u1ef1 lan truy\u1ec1n v\u1ebft n\u1ee9t nhanh ch\u00f3ng (kh\u00f4ng ph\u00f9 h\u1ee3p cho \u0111\u01b0\u1eddng \u1ed1ng kh\u00ed \u0111\u1ed1t). H\u1ec7 th\u1ed1ng LBP press-fit c\u1ee7a Kansen \u0110\u1ee9c, s\u1eed d\u1ee5ng l\u1edbp composite kim lo\u1ea1i, cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p su\u1ea5t cao h\u01a1n 30% v\u00e0 tu\u1ed5i th\u1ecd l\u00ean \u0111\u1ebfn 100 n\u0103m.<\/li>\n\n\n\n<li><strong>C\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3<\/strong>Aquatherm \u0111\u00e3 th\u00e0nh l\u1eadp c\u00e1c trung t\u00e2m nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n (R&amp;D) PPR to\u00e0n c\u1ea7u, s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh BIM \u0111\u1ec3 gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t t\u1ea1i c\u00f4ng tr\u01b0\u1eddng xu\u1ed1ng 15%. C\u00e1c doanh nghi\u1ec7p Trung Qu\u1ed1c \u0111\u00e3 ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u ch\u1ed1ng ch\u00e1y kh\u00f4ng ch\u1ee9a halogen \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n RoHS \u0111\u1ec3 m\u1edf r\u1ed9ng th\u1ecb tr\u01b0\u1eddng sang ch\u00e2u \u00c2u v\u00e0 M\u1ef9.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai: Chuy\u1ec3n \u0111\u1ed5i xanh v\u00e0 T\u00edch h\u1ee3p s\u1ed1<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Y\u1ebfu t\u1ed1 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng<\/strong>C\u00e1c quy \u0111\u1ecbnh c\u1ee7a Li\u00ean minh Ch\u00e2u \u00c2u (EU) y\u00eau c\u1ea7u gi\u1ea3m 30% n\u0103ng l\u01b0\u1ee3ng cho thi\u1ebft b\u1ecb h\u1ee3p nh\u1ea5t. C\u00f4ng ngh\u1ec7 l\u00f2 nung c\u1ee7a StrikoWestofen (\u0110\u1ee9c) \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tu\u00e2n th\u1ee7 th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng l\u1edbp l\u00f3t h\u1ee3p kim v\u00e0 thi\u1ebft k\u1ebf thu h\u1ed3i nhi\u1ec7t, t\u1eeb \u0111\u00f3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh lo\u1ea1i b\u1ecf c\u00e1c m\u00f4 h\u00ecnh c\u00f3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i cao.<\/li>\n\n\n\n<li><strong>\u1ee8ng d\u1ee5ng c\u1ee7a B\u1ea3n sao k\u1ef9 thu\u1eadt s\u1ed1<\/strong>H\u1ec7 th\u1ed1ng s\u1ea3n xu\u1ea5t \u1ed1ng BIM ti\u1ec1n ch\u1ebf c\u1ee7a aquatherm cho ph\u00e9p theo d\u00f5i to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb thi\u1ebft k\u1ebf \u0111\u1ebfn b\u1ea3o tr\u00ec, gi\u1ea3m sai s\u00f3t trong thi c\u00f4ng xu\u1ed1ng 20%.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn: Ch\u1ee7 quy\u1ec1n c\u00f4ng ngh\u1ec7 quy\u1ebft \u0111\u1ecbnh \u1ea3nh h\u01b0\u1edfng tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 to\u00e0n c\u1ea7u h\u00f3a c\u1ee7a m\u00e1y h\u00e0n nhi\u1ec7t PPR ph\u1ea3n \u00e1nh s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa&nbsp;<strong>S\u00e1ng t\u1ea1o v\u1eadt li\u1ec7u<\/strong>,&nbsp;<strong>C\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/strong>, v\u00e0&nbsp;<strong>Cu\u1ed9c thi ti\u00eau chu\u1ea9n h\u00f3a<\/strong>. Khi c\u00e1c doanh nghi\u1ec7p Trung Qu\u1ed1c chuy\u1ec3n t\u1eeb vai tr\u00f2 ng\u01b0\u1eddi theo sau sang ng\u01b0\u1eddi \u0111\u1eb7t ra ti\u00eau chu\u1ea9n (v\u00ed d\u1ee5: tham gia v\u00e0o vi\u1ec7c s\u1eeda \u0111\u1ed5i ti\u00eau chu\u1ea9n ISO 12176), nh\u1eefng \u0111\u1ed9t ph\u00e1 trong quy tr\u00ecnh xanh (h\u1ee3p nh\u1ea5t kh\u00f4ng dung m\u00f4i) v\u00e0 \u0111i\u1ec1u khi\u1ec3n th\u00f4ng minh (t\u1ed1i \u01b0u h\u00f3a th\u00f4ng s\u1ed1 b\u1eb1ng tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o) s\u1ebd l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi l\u00e0n s\u00f3ng thay th\u1ebf to\u00e0n c\u1ea7u c\u1ee7a \u1ed1ng composite.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">B\u1ea3ng: S\u1ef1 ph\u00e1t tri\u1ec3n qu\u1ed1c t\u1ebf c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 k\u1ebft n\u1ed1i h\u00e0n<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>K\u1ef3<\/strong><\/th><th>\u0110i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9<\/th><th>\u0110i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t<\/th><th>C\u00e1c \u0111\u1ed5i m\u1edbi c\u1ed1t l\u00f5i<\/th><\/tr><\/thead><tbody><tr><td><strong>Th\u1eadp ni\u00ean 1980-1990<\/strong><\/td><td>215\u00b0C (DVS)<\/td><td>0,18 MPa<\/td><td>M\u00e1y h\u00e0n b\u00e1n t\u1ef1 \u0111\u1ed9ng, kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 d\u00e0y th\u00e0nh t\u01b0\u1eddng<\/td><\/tr><tr><td><strong>Th\u1eadp ni\u00ean 2000-2010<\/strong><\/td><td>225\u00b0C (\u0110\u1ea1i h\u1ecdc Ghent)<\/td><td>Gi\u1ea3m 50%<\/td><td>M\u00e1y h\u00e0n t\u1ef1 \u0111\u1ed9ng ho\u00e0n to\u00e0n, SmartHeat<\/td><\/tr><tr><td><strong>T\u1eeb n\u0103m 2020 \u0111\u1ebfn nay<\/strong><\/td><td>\u0110\u1ed9 ch\u00ednh x\u00e1c \u00b11\u00b0C<\/td><td>\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9ng<\/td><td>H\u1ec7 th\u1ed1ng nh\u1eadn d\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1, s\u1ea3n xu\u1ea5t s\u1eb5n BIM<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">B\u1ea3ng: C\u00f4ng ngh\u1ec7 h\u00e0n \u0111i\u1ec7n so v\u1edbi c\u00f4ng ngh\u1ec7 h\u00e0n \u0111\u1ed1i \u0111\u1ea7u<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>C\u00f4ng ngh\u1ec7<\/strong><\/th><th>C\u00e1c tr\u01b0\u1eddng h\u1ee3p \u00e1p d\u1ee5ng<\/th><th>\u01afu \u0111i\u1ec3m<\/th><th>H\u1ea1n ch\u1ebf<\/th><\/tr><\/thead><tbody><tr><td><strong>H\u00e0n \u0111i\u1ec7n<\/strong><\/td><td>T\u1ea5t c\u1ea3 c\u00e1c k\u00edch th\u01b0\u1edbc \u1ed1ng, v\u1eadt li\u1ec7u kh\u00e1c nhau<\/td><td>ID th\u00f4ng s\u1ed1 t\u1ef1 \u0111\u1ed9ng, &lt;5% l\u1ed7i do con ng\u01b0\u1eddi<\/td><td>D\u00e2y \u0111\u1ed3ng l\u00e0m t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a c\u1ee7a PPR.<\/td><\/tr><tr><td><strong>H\u00e0n nhi\u1ec7t<\/strong><\/td><td>\u1ed0ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh tr\u00ean 63mm, v\u1eadt li\u1ec7u \u0111\u1ed3ng nh\u1ea5t<\/td><td>\u0110\u1ed9 b\u1ec1n c\u1ee7a m\u1ed1i n\u1ed1i = th\u00e2n \u1ed1ng, ti\u1ebft ki\u1ec7m chi ph\u00ed 30%<\/td><td>Nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9 (c\u1ea7n b\u1ea3o v\u1ec7 \u1edf -5\u00b0C)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>PPR (random copolymer polypropylene) fusion welding machines, as core tools for plastic piping systems, have become mainstream equipment in global pipeline engineering since their emergence in the 1970s. Integrating breakthroughs in materials science, automated control, and environmental concepts, their development has profoundly reshaped the global pipeline connection industry. 1. Technological Origins and International Market Foundation &#8230; <a title=\"Ph\u00e1t tri\u1ec3n qu\u1ed1c t\u1ebf c\u1ee7a m\u00e1y h\u00e0n nhi\u1ec7t PPR\" class=\"read-more\" href=\"https:\/\/zjhaotianwelding.com\/vi\/ppr-hot-melt-history\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 International Development of PPR Fusion Welding Machines\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>","protected":false},"author":1,"featured_media":776,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-775","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>International Development of PPR Fusion Welding Machines - HAOTIAN<\/title>\n<meta name=\"description\" content=\"International Development of PPR Fusion Welding Machines The development history of PPR hot melt machine\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zjhaotianwelding.com\/vi\/ppr-hot-melt-history\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"International Development of PPR Fusion Welding Machines - 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