Iibholithi zeHeavy Structural (ASTM A 325 ASTM A 490)

Ukufumana imfezeko yolwakhiwo oluphezulu kunye nokuthembeka kwiiprojekthi zolwakhiwo, themba iibholiti ze-hex ezinzima ezihambelana nemigangatho ye-ASTM A325 kunye ne-A490. Ngokwakhiwa kwentsimbi ephezulu, ukumelana nemozulu, kunye nokuthotyelwa ngokungqongqo kwimigangatho yoshishino, ezi bholithi zibonelela ngokusebenza okuthembekileyo kwizicelo ezibalulekileyo zesakhiwo.

Umzekelo:ASME B 18.2.6

Thumela uMbuzo

Ingcaciso yeMveliso

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IMfezeko yoLwakhiwo:Iibholithi zesakhiwo esinzima esineheksi ezihambelana ne-ASTM A325 kunye ne-ASTM A490 zenziwa ubunjineli ukuze zibonelele ngentembeko yolwakhiwo olumandla kwiiprojekthi zolwakhiwo kunye neziseko ezingundoqo. Ezi bhotshi zenzelwe ukujamelana nemithwalo ephezulu kunye noxinzelelo, okwenza ukuba zilungele izicelo ezibalulekileyo apho ukhuseleko kunye nokuthembeka kubaluleke kakhulu.

Intsimbi yokuqina okuphezulu:Iveliswa ukusuka kwi-alloys yensimbi ephezulu, ezi bholithi zibonelela ngeempawu eziphezulu zokuqina kunye nokuqina kwe-shear, ziqinisekisa ukusebenza okuthembekileyo kunxibelelwano lwesakhiwo. Ulwakhiwo lwabo olomeleleyo lubenza balungele ukusetyenziswa kwiibhulorho, izakhiwo, iinqaba, kunye nezinye izakhiwo ezithwala imithwalo ephantsi kwemithwalo enzima kunye namandla aguqukayo.

Ukuxhathisa iMozulu:Iibholiti zesakhiwo esinzima sehex ziyilelwe ukuxhathisa imiba yokusingqongileyo enjengomhlwa, umhlwa, kunye neemeko zomoya. Ngeengubo zokugquma ezinganyangekiyo kwi-corrosion kunye nemathiriyeli, ezi bholithi zibonelela ngokuhlala ixesha elide kunye nokuthembeka, nakwiindawo ezingaphandle ezirhabaxa kunye nezicelo zaselwandle.

Layisha kwangaphambili kunye noMnyanzelo wokuBamba:Ngokubonelela ngenqanaba eliphezulu lokulayishwa kwangaphambili kunye namandla okubamba, iibholiti ze-ASTM A325 kunye ne-A490 zinceda ukugcina ingqibelelo edibeneyo kunye nokuthintela ukukhulula phantsi kwemithwalo eguquguqukayo kunye nokungcangcazela. Oku kuqinisekisa ukuba uqhagamshelo lwezakhiwo luhlala lukhuselekile ekuhambeni kwexesha, lunciphisa umngcipheko wokusilela kwesakhiwo kunye nokuqinisekisa ukhuseleko lwabasebenzi kunye nempahla.

Ukuthotyelwa kunye neSiqinisekiso:Ngokwemigangatho yoshishino, iibholiti ezinzima zehex zolwakhiwo zivavanywa ngokuqatha kunye nesatifikethi sokuqinisekisa ukuthotyelwa kwe-ASTM A325 kunye ne-A490. Oku kubandakanya ukuvavanywa koomatshini, uhlalutyo lweekhemikhali, kunye nokutshekishwa kobukhulu ukuqinisekisa ukusebenza kwebholithi kunye nokuthembeka, ukunika isiqinisekiso somgangatho kunye nokuthembeka.

Iingqwalasela zoFakelo:Ubuchule bofakelo obufanelekileyo, kubandakanywa iinkqubo ezichanekileyo zokuqinisa kunye nokwenza ngathi ibholithi, ziyimfuneko ekwandiseni ukusebenza kweebholiti zesakhiwo esinzima se-hex. Ukulandela iingcebiso zomvelisi kunye nezona ndlela zisebenza kakuhle kwishishini ziqinisekisa ukusebenza kwebholiti okugqwesileyo kunye nemfezeko yolwakhiwo.

Uthethwano lweNgcali:Xa uchaza iibholiti ze-hex ezinzima kwiiprojekthi zokwakha, ukubonisana neenjineli zezakhiwo kunye neengcali zokuziqinisa kuyacetyiswa. Banokubonelela ngesikhokelo ekukhetheni uhlobo olufanelekileyo lwebholithi, ubungakanani, kunye nebakala lokuhlangabezana neemfuno ezithile zesicelo kunye nokuqinisekisa ukuthotyelwa kwemigangatho yoshishino.

Usetyenziso Olubalulekileyo:Iibholiti zesakhiwo esinzima sehex zizinto ezibalulekileyo kumacandelo okwakha kunye neziseko zophuhliso, apho zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko kunye nozinzo lweendawo ezakhiweyo. Ukusuka kwiibhulorho kunye nezakhiwo ukuya kwizibonelelo zoshishino kunye neziseko zothutho, ezi bholithi zinegalelo kwimfezeko yesakhiwo kunye nokomelela kweeprojekthi zeziseko ezingundoqo.

Screw Thread
d

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

d_s	max
d_s	imiz
s	Ubungakanani bobizo
	max
	imiz
e	max
e	imiz
k	Ubungakanani bobizo
	max
	imiz
b	Ref.

0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
7/8	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16	2-3/8
0.875	1.062	1.25	1.438	1.625	1.812	2	2.188	2.375
0.85	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.3
1.01	1.227	1.443	1.66	1.876	2.093	2.309	2.526	2.742
0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416	2.622
5/16	25/64	15/32	35/64	39/64	11/16	25/32	27/32	15/16
0.323	0.403	0.483	0.563	0.627	0.718	0.813	0.878	0.974
0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902
1	1.25	1.38	1.5	1.75	2	2	2.25	2.25

①,Iikhemikhali kunye neempawu zoomatshini beebholithi zentsimbi ziya kuhambelana ne-ASTM A 325 okanye i-ASTM A490.

Iithegi ezishushu: Iibholiti zeHeavy Hex Structural (ASTM A 325 ASTM A 490), eTshayina, abavelisi, ababoneleli, iFactory, iholeyili, iCwangciso, uMgangatho