CEPATTanggapan
CEPATcutatan
CEPATPangiriman
SIAP KIRIM KIRIM
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Kami komitmen pikeun item RTS:
70% barang dikirimkeun dina 5 poé
80% barang dikirimkeun dina 7 poé
90% barang dikirimkeundina 10 poé
pesenan bulk, mangga ngahubungan layanan palanggan
d | M1.4 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | |
P | Benang kasar | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 |
benang alus | / | / | / | / | / | / | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 2 | 2 | |
Thread anu saé pisan | / | / | / | / | / | / | / | / | / | 1 | 1.25 | / | / | 1.5 | 1.5 | |
b | nilai rujukan | 14 | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 |
dk | Max (Lemes) | 2.6 | 3 | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 |
Max (Knurl*) | 2.74 | 3.14 | 3.98 | 4.68 | 5.68 | 7.22 | 8.72 | 10.22 | 13.27 | 16.27 | 18.27 | 21.33 | 24.33 | 27.33 | 30.33 | |
Min | 2.46 | 2.86 | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.67 | 29.67 | |
ds | Max | 1.4 | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
Min | 1.26 | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 17.73 | 19.67 | |
k | Max | 1.4 | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
Min | 1.26 | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.7 | 7.64 | 9.64 | 11.57 | 13.57 | 15.57 | 17.57 | 19.48 | |
s | Nominal | 1.3 | 1.5 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 14 | 17 |
Min | 1.32 | 1.52 | 1.52 | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 12.032 | 14.032 | 14.032 | 17.05 | |
Max | 1.36 | 1.56 | 1.56 | 2.06 | 2.58 | 3.08 | 4.095 | 5.14 | 6.14 | 8.175 | 10.175 | 12.212 | 14.212 | 14.212 | 17.23 | |
t | Min | 0.6 | 0.7 | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Panjang benang=b | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
d | (M22) | M24 | (M27) | M30 | (M33) | M36 | M42 | M48 | M56 | M64 | M72 | M80 | M90 | M100 | ||
P | Benang kasar | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6 | 6 | 6 | 6 | |
benang alus | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | ||
Thread anu saé pisan | 1.5 | / | / | / | / | / | / | / | / | / | / | / | / | / | ||
b | nilai rujukan | 56 | 60 | 66 | 72 | 78 | 84 | 96 | 108 | 124 | 140 | 156 | 172 | 192 | 212 | |
dk | Max (Lemes) | 33 | 36 | 40 | 45 | 50 | 54 | 63 | 72 | 84 | 96 | 108 | 120 | 135 | 150 | |
Max (Knurl*) | 33.39 | 36.39 | 40.39 | 45.39 | 50.39 | 54.46 | 63.46 | 72.46 | 84.54 | 96.54 | 108.54 | 120.54 | 135.63 | 150.63 | ||
Min | 32.61 | 35.61 | 39.61 | 44.61 | 49.61 | 53.54 | 62.54 | 71.54 | 83.46 | 95.46 | 107.46 | 119.46 | 134.37 | 149.37 | ||
ds | Max | 22 | 24 | 27 | 30 | 33 | 36 | 42 | 48 | 56 | 64 | 72 | 80 | 90 | 100 | |
Min | 21.67 | 23.67 | 26.67 | 29.67 | 32.61 | 35.61 | 41.61 | 47.61 | 55.54 | 63.54 | 71.54 | 79.54 | 89.46 | 99.46 | ||
k | Max | 22 | 24 | 27 | 30 | 33 | 36 | 42 | 48 | 56 | 64 | 72 | 80 | 90 | 100 | |
Min | 21.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 41.38 | 47.38 | 56.26 | 63.26 | 71.26 | 79.26 | 89.13 | 99.13 | ||
s | Nominal | 17 | 19 | 19 | 22 | 24 | 27 | 32 | 36 | 41 | 46 | 55 | 65 | 75 | 85 | |
Min | 17.05 | 19.065 | 19.065 | 22.065 | 24.065 | 27.065 | 32.08 | 36.08 | 41.08 | 46.08 | 55.1 | 65.1 | 75.1 | 85.12 | ||
Max | 17.23 | 19.275 | 19.275 | 22.275 | 24.275 | 27.275 | 32.33 | 36.33 | 41.33 | 46.33 | 55.4 | 65.4 | 75.4 | 85.47 | ||
t | Min | 11 | 12 | 13.5 | 15.5 | 18 | 19 | 24 | 28 | 34 | 38 | 43 | 48 | 54 | 60 | |
Panjang benang=b | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Fasteners kakuatan tinggi bakal ngahasilkeun crispness nalika galvanized. Butuh perhatian husus.
Embrittlement hidrogén biasana dicirikeun ku narekahan nyangsang dina kaayaan stres. Aya cinyusu mobil, washers, screws, lambar cinyusu jeung bagian galvanized séjén, dina sababaraha jam sanggeus assembly geus pegat, proporsi narekahan 40% ~ 50%. Dina prosés ngagunakeun bagian cadmium-plated tina produk husus, aya narekahan bets retakan, sarta masalah konci nasional ieu direngsekeun sarta prosés dehidrogénasi ketat ieu ngarumuskeun. Sajaba ti éta, aya sababaraha embrittlement hidrogén teu némbongkeun fenomena narekahan nyangsang, kayaning: gantungan electroplating (kawat baja, kawat tambaga) alatan sababaraha kali electroplating na pickling plating, penetrasi hidrogén leuwih serius, mindeng muncul dina pamakéan a melu bakal. lumangsung fenomena narekahan regas; The mandrel of shotgun a, sanggeus sababaraha kali chroming, murag kana taneuh sarta peupeus; Sababaraha bagian quenched (stress internal badag) bakal rengat nalika pickling. Bagian-bagian ieu dihidrogenasi parah sareng retakan tanpa setrés éksternal, anu henteu tiasa dianggo deui pikeun mulangkeun kateguhan asli ku dehidrogénasi.
Nu leuwih luhur kakuatan bahan, nu gede sensitipitas embrittlement hidrogén. Ieu mangrupikeun konsép dasar anu kedah dijelaskeun ku teknisi perawatan permukaan nalika nyusun spésifikasi prosés electroplating. Steels kalawan kakuatan tensile σb> 105kg / mm2 diperlukeun ku standar internasional kudu subjected kana stress pre-plating jeung perlakuan dehidrogénasi pos-plating sasuai. Industri penerbangan Perancis merlukeun perlakuan dehidrogénasi pakait pikeun bagian baja kalawan kakuatan ngahasilkeun σs> 90kg / mm2.
Kusabab susuratan anu hadé antara kakuatan baja sareng karasa, langkung intuitif sareng merenah pikeun nangtoskeun sensitipitas embrittlement hidrogén bahan ku karasa tibatan ku kakuatan. Kusabab gambar produk sampurna jeung prosés machining kudu ditandaan kalawan karasa baja. Dina electroplating, urang manggihan yén karasa baja sabudeureun HRC38 mimiti némbongkeun résiko narekahan hidrogén embrittlement. Pikeun bagian nu leuwih luhur ti HRC43, dehidrogénasi kudu dianggap sanggeus plating. Lamun karasa nyaeta ngeunaan HRC60, perlakuan dehidrogénasi kudu dilaksanakeun langsung saatos perlakuan permukaan, disebutkeun bagian baja bakal rengat dina sababaraha jam.
* Diagram di handap ieu nangtukeun incoterms dagang béda. Mangga pilih nu Anjeun pikaresep.
Handan Yongnian Hongji Machinery Parts Co., Ltd.
Kualitas Kahiji, Kasalametan Dijamin