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READY TO LIOSTA SHIP
10000+ SKU ann an stòr
Bidh sinn a’ gealltainn nithean RTS:
70% stuthan air an lìbhrigeadh taobh a-staigh 5 latha
80% stuthan air an lìbhrigeadh taobh a-staigh 7 latha
90% stuthan air an lìbhrigeadhtaobh a-staigh 10 latha
Òrdughan mòr, cuir fios gu seirbheis teachdaiche
Feuch an cuir thu fios thugainn airson tuilleadh fiosrachaidh, leithid an cuideam, an sònrachadh pacaidh, an liosta prìsean, agus mar sin air adhart.
Dia/d | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 | |
PP | UNC | 20 | 18 | 16 | 14 | 13 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 |
UNF | 28 | 24 | 24 | 20 | 20 | 18 | 16 | 14 | 12 | 12 | 12 | 12 | 12 | |
8-UN | - | - | - | - | - | - | - | - | - | 8 | 8 | 8 | 8 | |
ds | max | 0.26 | 0.324 | 0.388 | 0.452 | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1. 149 | 1. 277 | 1.404 | 1.531 |
min | 0.237 | 0.298 | 0.36 | 0.421 | 0.482 | 0.605 | 0.729 | 0.852 | 0.976 | 1.098 | 1.223 | 1. 345 | 1.47 | |
s | max | 0.438 | 0.5 | 0.562 | 0.625 | 0.75 | 0.938 | 1. 125 | 1.312 | 1.5 | 1.688 | 1.875 | 2.062 | 2.25 |
min | 0.425 | 0.484 | 0.544 | 0.603 | 0.725 | 0.906 | 1.088 | 1.269 | 1.45 | 1.631 | 1.812 | 1.994 | 2. 175 | |
e | max | 0.505 | 0.577 | 0.65 | 0.722 | 0.866 | 1.083 | 1. 299 | 1.516 | 1.732 | 1.949 | 2. 165 | 2. 382 | 2.598 |
min | 0.484 | 0.552 | 0.62 | 0.687 | 0.826 | 1.033 | 1.24 | 1. 447 | 1.653 | 1.859 | 2.066 | 2.273 | 2.48 | |
k | max | 0.188 | 0.235 | 0.268 | 0.316 | 0.364 | 0.444 | 0.524 | 0.604 | 0.7 | 0.78 | 0.876 | 0.94 | 1.036 |
min | 0.15 | 0.195 | 0.226 | 0.272 | 0.302 | 0.378 | 0.455 | 0.531 | 0.591 | 0.658 | 0.749 | 0.81 | 0.902 | |
r | max | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.06 | 0.06 | 0.06 | 0.09 | 0.09 | 0.09 | 0.09 | 0.09 |
min | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | |
b | L≤6 | 0.75 | 0.875 | 1 | 1. 125 | 1.25 | 1.5 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | 3 | 3.25 |
L>6 | 1 | 1. 125 | 1.25 | 1. 375 | 1.5 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | 3 | 3.25 | 3.5 |
Dia/d | 1-5/8 | 1-3/4 | 1-7/8 | 2 | 2-1/4 | 2-1/2 | 2-3/4 | 3 | 3-1/4 | 3-1/2 | 3-3/4 | 4 | |
PP | UNC | - | 5 | - | 4-1/2 | 4-1/2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
UNF | - | - | - | - | - | - | - | - | - | - | - | - | |
8-UN | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | |
ds | max | 1.658 | 1.785 | 1.912 | 2.039 | 2. 305 | 2.559 | 2.827 | 3.081 | 3. 335 | 3.589 | 3.858 | 4.111 |
min | 1.591 | 1.716 | 1.839 | 1.964 | 2.214 | 2. 461 | 2.711 | 2.961 | 3.21 | 3. 461 | 3.726 | 3.975 | |
s | max | 2. 438 | 2.625 | 2.812 | 3 | 3.375 | 3.75 | 4. 125 | 4.5 | 4.875 | 5.25 | 5.625 | 6 |
min | 2. 356 | 2.538 | 2.719 | 2.9 | 3.262 | 3.625 | 3. 988 | 4.35 | 4.712 | 5.075 | 5.437 | 5.8 | |
e | max | 2.815 | 3.031 | 3.248 | 3. 464 | 3.897 | 4.33 | 4.763 | 5. 196 | 5.629 | 6.062 | 6.495 | 6.928 |
min | 2.616 | 2.893 | 3.099 | 3. 306 | 3.719 | 4.133 | 4.546 | 4.959 | 5.372 | 5.786 | 6. 198 | 6.612 | |
k | max | 1.116 | 1. 196 | 1. 276 | 1.388 | 1.548 | 1.708 | 1.869 | 2.06 | 2.251 | 2.38 | 2. 572 | 2.764 |
min | 0.978 | 1.054 | 1.13 | 1. 175 | 1. 327 | 1. 479 | 1.632 | 1.815 | 1.936 | 2.057 | 2.241 | 2. 424 | |
r | max | 0.09 | 0.12 | 0.12 | 0.12 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 | 0.19 |
min | 0.03 | 0.04 | 0.04 | 0.04 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | |
b | L≤6 | 3.5 | 3.75 | 4 | 4.25 | 4.75 | 5.25 | 5.75 | 6.25 | 6.75 | 7.25 | 7.75 | 8.25 |
L>6 | 3.75 | 4 | 4.25 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 |
Tha UNC a’ toirt iomradh air an t-snàthainn garbh ann an sreath UN snàithlean aonaichte na Stàitean Aonaichte (radius freumhag snàithlean taobh a-muigh roghainneil).
Dè a th’ ann an làimhseachadh uachdar Black Oxide?
Black oxide, dòigh cumanta air làimhseachadh uachdar ceimigeach. Tha dubh ogsaid na dhòigh cumanta air làimhseachadh uachdar ceimigeach. Is e am prionnsapal film ogsaid a dhèanamh air an uachdar meatailt gus an èadhar a sgaradh agus adhbhar casg meirge a choileanadh. Nuair nach eil na riatanasan coltas àrd, faodar dubhadh a chleachdadh, agus tha uachdar pàirtean stàilinn air a dhubhadh, ris an canar cuideachd gorm.
Tha na dòighean a thathas a’ cleachdadh gu cumanta airson làimhseachadh dubh-ogsaid a’ toirt a-steach dubhadh teas alcaileach traidiseanta agus dubhadh teòthachd an t-seòmair a thachras nas fhaide air adhart. Ach, chan eil am pròiseas dubhadh aig teòthachd an t-seòmair glè èifeachdach airson stàilinn gualain ìosal. Tha dubhadh alcaileach air a roinneadh, agus tha eadar-dhealachadh eadar aon uair dubhadh agus dubhadh dà uair. Is e na prìomh phàirtean de lionn dubhadh sodium hydroxide agus sodium nitrite. Chan eil an eadar-dhealachadh teòthachd a tha a dhìth airson dubhadh mòr, agus gheibhear uachdar math eadar 135-155 ° C, ach tha an ùine a tha a dhìth beagan fada.
* Tha an diagram a leanas a’ comharrachadh nan diofar incoterms malairt. Feuch an tagh thu am fear as fheàrr leat.
Càileachd An toiseach, Sàbhailteachd Barantaichte