#704, No. 2362, Barabara ya Fangzhong, Xiamen, Fujian, China, 361009 +86-18350098686 [email protected]
Bolti ya sehemu ni nini?
Bolti ya sehemu ni aina ya kifungo kinachotumika katika mashine kali, hasa katika mifumo ya kuchimbua udongo kama vile kichimbao na bulldozer. Iliyoundwa ili kufunga sehemu za mfululizo ya mstari pamoja.
D475 bolti ya sehemu & nuti
Ukubwa: M30×120mm
Uzito: 1.24KG
Daraja: 12.9
Kitu: 40Cr
Nambari ya sehemu ya bolt: 198-27-32231
Vikomo vya kawaida vya bolti na nati kwa kifaa cha kuchimba vinaweza kutofautiana kulingana na mtindo na mfano wa kifaa cha kuchimba. Vikomo vya kawaida vijenye M12, M16, M20, na M24.

Hatua ya-1: Uchunguzi wa vitu vya kwanza na uhifadhi
Vitu vya kwanza kwa bolti vinachaguliwa na muhandisi kulingana na matumizi. Vitu vya kwanza vya kutumika vinapaswa kuchunguzwa kisha eneo la uhifadhi sahihi linatajwa ili kuzuia uundaji wa uvumbi na uhifadhi sahihi unapaswa kuhakikishwa.
Hatua ya-2: Uzalishaji wa bolti isiyo na nyuzi / isiyo ya kutosha
Kiwango cha kawaida, utengenezaji kwa kutengeneza na kufanya kwa nguvu hutumika katika hatua hii. Njia nyingine pia zinaweza kutumika:
1. Kufanya kwa kutengeneza kwa njia ya kusukuma (Sintering)
2. Kutengeneza mfano wa haraka (Prototyping ya Haraka)
Hatua ya-3: Utengenezaji kwa kutumia CNC
Baada ya sehemu kuundwa kwa njia ya kufanya kwa kuvunja/kukandikia, inapakuliwa kwa ukubwa unaohitajika kwa kutumia CNC.
Mifumo inayofuata hapa ni: kufanya pointi, kufanya upande wa mbele, na kufanya vinyo.
Hatua ya 4: Uchunguzi wa Joto
Uchunguzi wa joto huifanywa baada ya kufanya kazi ili kufanya vifungo viwe vya nguvu zaidi. Mifumo ya kufanya joto na kurehisha inafuata.
Kwanza, kufanya joto huifanywa kwa namna ambavyo bulliti inajazwa hadi joto la 850–900°C kisha inapigwa katika chombo cha kuchukua joto.
Pili, bulliti inajazwa tena ili kurejesha bulliti iliyopaswa sana ili iwe ya nguvu zaidi. Kujaza tena huifanywa ili kupunguza uchafu wa bulliti uliojitokeza wakati wa kufanya joto.
Hatua ya 5: Kufanya Uso wa Kukamilika
Inafuata kufanya uso wa kukamilika. Kawaida, mchakato wa kuganda unatumika ili kufanya uso la kuvunja lisafi zaidi kulingana na mahitaji ya uso wa kukamilika.
Hatua ya 6: Kufanya Kamba
Baada ya kumaliza mchakato, kufanya mishale (thread rolling) huifanywa kwa kutumia mishe mbili. Moja ni ya kupumzika na nyingine ni ya kuhamia ambayo inaleta shinikizo kwenye mabolti na inaunda mishale.
Hatua ya 7: Kuvalisha
Baada ya kufanya mishale, mabolti na vifungo vya skru huvalishwa ili kuzuia kuvimba na uvimbe. Mfano mzuri wa kuvalisha bolti ni kuvalisha kwa geomet, ambao hutajwa kwa mtihani wa mafuriko ya chumvi (SST) kulingana na idadi ya masaa kama ilivyotajwa.
Mashine inayoitwa FISCHERSCOPE hutumika kupima u thicknes wa kuvalisha pamoja na vifaa vingine vya kupima u thicknes kama vile kipimo cha u thicknes wa kuvalisha.
Hatua ya 8: Uchunguzi wa Umbo, Ufiti na Kazi:
Baada ya kufanywa mchakato wote, sehemu hii hatimaye inakwenda kwenye uchunguzi. Inapaswa kujikidhi
1. Mtihani wa torki, SST
2. Ufiti na nuti
3. Uwezo wa kusimama dhidi ya mafutio (mtihani wa charpy wa mafutio)
4. Mtihani wa nguvu ya kuchukua (% ya urefu ulioongezeka wa bolti)
5. Uzito wa msingi wa msumari
6. U thickness wa kipandishi
Uchunguzi wa vipimo n.k.
| No | Jina | Ukubwa | No | Jina | Ukubwa |
|---|---|---|---|---|---|
| 1 | Mchi | TB12NS | 77 | Bolt | TB30*96B |
| 2 | Mchi | TB14NH | 78 | Bolt | TB30*168B |
| 3 | Mchi | TB14NS | 79 | Bolt | TB1/2*1.1/2B |
| 4 | Mchi | TB16NS | 80 | Bolt | TB1/2*1.57/64B |
| 5 | Mchi | TB18NS | 81 | Bolt | TB1*2.15/16B |
| 6 | Mchi | TB19NS | 82 | Bolt | TB1.3/8*5B |
| 7 | Mchi | TB20NS(28S) | 83 | Bolt | TB1*3.13/16B |
| 8 | Mchi | TB20NS(30S) | 84 | Bolt | TB1*3.35/64B |
| 9 | Mchi | TB20NS-30S25H-GETT | 85 | Bolt | TB1*3.3/16B |
| 10 | Mchi | TB22NS | 86 | Bolt | TB1*4.27/32B |
| 11 | Mchi | TB24NS | 87 | Bolt | TB1*4.52/64B |
| 12 | Mchi | TB24NH | 88 | Bolt | TB1*5.53/64B |
| 13 | Mchi | TB27NH | 89 | Bolt | TB1*5.9/16B |
| 14 | Mchi | TB27NS | 90 | Bolt | TB1.1/4*7B |
| 15 | Mchi | TB27NU) | 91 | Bolt | TB1.1/4*4.9/16B-CTP |
| 16 | Mchi | TB30NU | 92 | Bolt | TB1.1/8*3.25/32B |
| 17 | Mchi | TB1NU | 93 | Bolt | TB1.1/8*3.39/64WB |
| 18 | Mchi | TB1NS | 94 | Bolt | TB1.1/8*4.13/32B |
| 19 | Mchi | TB1/2NS | 95 | Bolt | TB1.1/4*4.9/16B |
| 20 | Mchi | TB1/2NT | 96 | Bolt | TB1.1/8*5.15/32B |
| 21 | Mchi | TB1.1/8NU | 97 | Bolt | TB1.1/8*5.9/32B |
| 22 | Mchi | TB3/4NS | 98 | Bolt | TB1.1/8*6.29/64B |
| 23 | Mchi | TB5/8NH | 99 | Bolt | TB3/4*2.13/32B |
| 24 | Mchi | TB5/8NS | 100 | Bolt | TB3/4*2.13/64B |
| 25 | Mchi | TB7/8NS | 101 | Bolt | TB3/4*2.3/8B |
| 26 | Mchi | 102 | Bolt | TB3/4*2.3/4B | |
| 27 | Mchi | TB7/8NU | 103 | Bolt | TB3/4*4.1/8B |
| 28 | Mchi | TB9/16NH-CTP | 104 | Bolt | TB3/4*4.9/64B |
| 29 | Mchi | TB9/16NS | 105 | Bolt | TB3/4*57B |
| 30 | Bolt | TB12*40B | 106 | Bolt | TB3/4*67B |
| 31 | Bolt | TB14*35B | 107 | Bolt | TB3/4*74B |
| 32 | Bolt | TB14*45B | 108 | Bolt | TB3/4*2.35/64B |
| 33 | Bolt | TB14*48B | 109 | Bolt | TB3/4*2.5/32B |
| 34 | Bolt | TB14*85B | 110 | Bolt | TB3/4*2.7/16B |
| 35 | Bolt | TB16*48B | 111 | Bolt | TB3/4*3.9/64B |
| 36 | Bolt | TB16*53B | 112 | Bolt | TB3/4*3.5/8B |
| 37 | Bolt | TB16*182B | 113 | Bolt | TB3/4*3.57/64B |
| 38 | Bolt | TB18*55B | 114 | Bolt | TB3/4*5.1/2B |
| 39 | Bolt | TB18*57B | 115 | Bolt | TB5/8*1.1/2B |
| 40 | Bolt | TB18*59B | 116 | Bolt | TB5/8*1.31/32B |
| 41 | Bolt | TB18*60B | 117 | Bolt | TB5/8*1.3/4B |
| 42 | Bolt | TB19*69B | 118 | Bolt | TB5/8*1.35/36B |
| 43 | Bolt | TB19*98B | 119 | Bolt | TB5/8*48B-GETT |
| 44 | Bolt | TB20*55B/WB | 120 | Bolt | TB5/8*2.19/32B |
| 45 | Bolt | TB20*56WB | 121 | Bolt | TB5/8*2.3/32B |
| 46 | Bolt | TB20*60B (TST) | 122 | Bolt | TB5/8*2B |
| 47 | Bolt | TB20*60B (Kiingereza) | 123 | Bolt | TB5/8*2.5/32B |
| 48 | Bolt | TB20*63B | 124 | Bolt | TB5/8*2.7/64B |
| 49 | Bolt | TB20*62B | 125 | Bolt | |
| 50 | Bolt | TB20*63B-CTP | 126 | Bolt | TB5/8*2.7/8B |
| 51 | Bolt | TB20*65B | 127 | Bolt | TB5/8*3B |
| 52 | Bolt | TB20*68B | 128 | Bolt | TB5/8*3.1/2B |
| 53 | Bolt | TB20*105B | 129 | Bolt | TB5/8*3.1/4B |
| 54 | Bolt | TB20*117B | 130 | Bolt | TB5/8*3.3/8B |
| 55 | Bolt | TB20.5*55B | 131 | Bolt | |
| 56 | Bolt | TB22*56WB | 132 | Bolt | TB5/8*3.9/16B |
| 57 | Bolt | TB22*59B | 133 | Bolt | TB5/8*4.5*16B |
| 58 | Bolt | TB22*65B | 134 | Bolt | TB7/8*2.21/32B |
| 59 | Bolt | TB22*67B | 135 | Bolt | TB7/8*3.11/32B |
| 60 | Bolt | TB22*70B | 136 | Bolt | |
| 61 | Bolt | TB22*73B | 137 | Bolt | TB7/8*3.13/32B |
| 62 | Bolt | TB22*73B-CTP | 138 | Bolt | TB7/8*3.13/32B-CTP |
| 63 | Bolt | TB22*115B | 139 | Bolt | TB7/8*3.25/32B |
| 64 | Bolt | TB24*1.5*129B | 140 | Bolt | TB7/8*3.27/64B |
| 65 | Bolt | TB24*65B | 141 | Bolt | TB7/8*3.3/4B |
| 66 | Bolt | TB24*67B | 142 | Bolt | TB7/8*4.27/32B |
| 67 | Bolt | TB24*75WB | 143 | Bolt | TB7/8*4.3/4B |
| 68 | Bolt | TB24*76.2B | 144 | Bolt | TB7/8*5B |
| 69 | Bolt | TB24*81B | 145 | Bolt | TB7/8*5.5/64B-CTP |
| 70 | Bolt | TB24*79B | 146 | Bolt | TB9/16*1.5/8B |
| 71 | Bolt | TB27*82B | 147 | Bolt | TB9/16*1.15/16B |
| 72 | Bolt | TB27*90B | 148 | Bolt | TB9/16*3B |
| 73 | Bolt | TB27*2*150B | 149 | Bolt | TB9/16*2.7/8B |
| 74 | Bolt | TB27*1.5*154B | 150 | Bolt | 3/4-10*190.3=CTP |
| 75 | Bolt | TB3/4*57B | 151 | Bolt | SQ3/4*2.1/8B-CTP |
| 76 | Bolt | TB7/8-14*129 Urefu | 152 | Bolt | 3/4-16*91-CTP |

