Bolt na Nut kwa Sehemu ya Viatu vya Njia Roller ya Njia ya Kukata Ukingo
Ukubwa wa kawaida wa boliti ya kuchimba na nati unaweza kutofautiana kulingana na muundo na modeli ya kichimbaji. Ukubwa wa kawaida ni pamoja na M12, M16, M20, na M24.
Hatua ya 1: Ukaguzi na uhifadhi wa malighafi
Malighafi kwa ajili ya boliti kuamuliwa kwa mbunifu kulingana na matumizi. Nyenzo zitakazotumika kukaguliwa na kisha eneo sahihi la kuhifadhi litambuliwe ili kuepuka kutu na kufunika vizuri kunahitaji kutolewa.
Hatua ya 2: Utengenezaji wa boliti ambazo hazijafungwa / ambazo hazijakamilika
Kwa kiasi kikubwa, uundaji na uundaji wa chuma hutumika katika hatua hii. Njia zingine zinaweza pia kutumika:
1. Kuchuja
2. Uundaji wa mifano (Haraka)
Hatua ya 3: Uchakataji wa CNC
Baada ya sehemu hiyo kutengenezwa kupitia njia ya uundaji/utupaji, kisha hutengenezwa kwa vipimo vinavyohitajika kwa kawaida na CNC.
Shughuli zinazofuatwa hapa ni: kuelekeza, kukabili, kukunja.
Hatua ya 4: Matibabu ya Joto
Matibabu ya joto hufanywa baada ya uchakataji ili kufanya vifungashio viwe na nguvu zaidi. Shughuli za ugumu na upimaji hufuatwa.
Kwanza, ugumu hufanywa ili boliti ipashwe joto hadi nyuzi joto 850-900 na kisha kuzimwa kwenye vyombo vya kupoeza.
Pili, boliti hupashwa moto tena ili kurejesha boliti iliyo ngumu sana ikiwa laini kidogo, ili boliti ibaki imara zaidi. Kupasha moto tena hufanywa ili kupunguza udhaifu wa boliti uliotokea wakati wa ugumu.
Hatua ya 5: Kumaliza Uso
Inayofuata ni mchakato wa kumalizia uso. Kwa kawaida, mchakato wa kusaga hufanywa ili kufanya uso uwe laini kulingana na vipimo vya kumalizia uso.
Hatua ya 6: Kuzungusha Uzi
Baada ya mchakato kukamilika, kuzungusha uzi hufanywa kwa kutumia dae mbili. Moja ni tuli na nyingine ni dae inayosonga ambayo kwa kweli hutoa shinikizo kwenye boliti na kutengeneza nyuzi.
Hatua ya 7: Kupaka rangi
Baada ya kuzungusha uzi, boliti na vifungashio vya skrubu hupakwa ili kuzuia kutu na kutu. Mfano mzuri wa mipako ya boliti ni mipako ya kijiometri katika boliti ambazo zitajaribiwa kwa SST (Jaribio la Kunyunyizia Chumvi) kulingana na idadi ya saa kama ilivyoainishwa.
Mashine inayoitwa FISCHERSCOPE hutumika kubaini unene wa mipako pamoja na vifaa vingine vya kupimia unene kama vile kipimo cha unene wa mipako.
Hatua ya 8: Ukaguzi wa Umbo, Ufaa na Utendaji Kazi:
Baada ya michakato yote kufanywa, hatimaye sehemu hiyo inakwenda kukaguliwa. Inapaswa kukutana
1. Mtihani wa torque, SST
2. Kuunganishwa na karanga
3. Nguvu ya athari (Jaribio la athari charpy)
4. Jaribio la nguvu ya mvutano (%urefu wa boliti)
5. Ugumu wa msingi wa boliti
6. Unene wa mipako
Ukaguzi wa vipimo n.k.
Mfano tunaoweza kutoa
| No | Jina | Ukubwa | No | Jina | Ukubwa |
| 1 | Kokwa | TB12NS | 77 | Bolt | TB30*96B |
| 2 | Kokwa | TB14NH | 78 | Bolt | TB30*168B |
| 3 | Kokwa | TB14NS | 79 | Bolt | TB1/2*1.1/2B |
| 4 | Kokwa | TB16NS | 80 | Bolt | TB1/2*1.57/64B |
| 5 | Kokwa | TB18NS | 81 | Bolt | TB1*2.15/16B |
| 6 | Kokwa | TB19NS | 82 | Bolt | TB1.3/8*5B |
| 7 | Kokwa | TB20NS(28S) | 83 | Bolt | TB1*3.13/16B |
| 8 | Kokwa | TB20NS(30S) | 84 | Bolt | TB1*3.35/64B |
| 9 | Kokwa | TB20NS-30S25H-GETT | 85 | Bolt | TB1*3.3/16B |
| 10 | Kokwa | TB22NS | 86 | Bolt | TB1*4.27/32B |
| 11 | Kokwa | TB24NS | 87 | Bolt | TB1*4.52/64B |
| 12 | Kokwa | TB24NH | 88 | Bolt | TB1*5.53/64B |
| 13 | Kokwa | TB27NH | 89 | Bolt | TB1*5.9/16B |
| 14 | Kokwa | TB27NS | 90 | Bolt | TB1.1/4*7B |
| 15 | Kokwa | TB27NU) | 91 | Bolt | TB1.1/4*4.9/16B-CTP |
| 16 | Kokwa | TB30NU | 92 | Bolt | TB1.1/8*3.25/32B |
| 17 | Kokwa | TB1NU | 93 | Bolt | TB1.1/8*3.39/64WB |
| 18 | Kokwa | TB1NS | 94 | Bolt | TB1.1/8*4.13/32B |
| 19 | Kokwa | TB1/2NS | 95 | Bolt | TB1.1/4*4.9/16B |
| 20 | Kokwa | TB1/2NT | 96 | Bolt | TB1.1/8*5.15/32B |
| 21 | Kokwa | TB1.1/8NU | 97 | Bolt | TB1.1/8*5.9/32B |
| 22 | Kokwa | TB3/4NS | 98 | Bolt | TB1.1/8*6.29/64B |
| 23 | Kokwa | TB5/8NH | 99 | Bolt | TB3/4*2.13/32B |
| 24 | Kokwa | TB5/8NS | 100 | Bolt | TB3/4*2.13/64B |
| 25 | Kokwa | TB7/8NS | 101 | Bolt | TB3/4*2.3/8B |
| 26 | Kokwa | 102 | Bolt | TB3/4*2.3/4B | |
| 27 | Kokwa | TB7/8NU | 103 | Bolt | TB3/4*4.1/8B |
| 28 | Kokwa | TB9/16NH-CTP | 104 | Bolt | TB3/4*4.9/64B |
| 29 | Kokwa | 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 (kwa 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长 | 152 | Bolt | 3/4-16*91-CTP |

















