Iibholiti zeNyathelo, (Uthotho lwe-intshi)

Khetha iibholithi zenyathelo lokuqiniswa okuthembekileyo nokukhuselekileyo kwizicelo ezifuna ukuqina kancinci kunye nokumelana nokutyibilika. Ngoyilo lwazo oluguquguqukayo kunye neenketho ezinokwenziwa ngokwezifiso, ezi bholithi zibonelela ngezisombululo ezisebenzayo kuluhlu olubanzi lweeprojekthi zoshishino kunye neziseko zophuhliso.

Umzekelo:ANSI ASME B 18.5

Thumela uMbuzo

Ingcaciso yeMveliso

[288]

Uyilo loNyathelo oluLungelweyo:Iibholiti zenyathelo, inxalenye yochungechunge lwe-intshi, lubonisa uyilo olulodwa lokunyathela oluphawulwe ngobude obahlukeneyo okanye iidayamitha ecaleni kwe-shaft. Olu yilo luququzelela ukuqiniswa ngokuthe ngcembe, ukunciphisa umngcipheko wokugqithisa ngokugqithiseleyo kunye nomonakalo kwindawo yokukhwelana ngelixa uqinisekisa uqhagamshelwano olukhuselekileyo noluzinzileyo.

Ukhuseleko olomeleziweyo:Iprofayili enyukileyo yezi bolt inika ukutsaleka kunye nokubamba okuphuculweyo, okubenza bafanelekele usetyenziso apho ukuxhathisa ukutyibilika kubalulekile, njengezitepsi, iirampu, kunye neerengi zeleli. Amanyathelo anyukayo abonelela abasebenzisi ngeenyawo ezizinzileyo, ukuphucula ukhuseleko kwiindawo zangaphakathi nangaphandle.

Ii-Aplikeshini eziNyezo:Iibholiti zenyathelo zifumana usetyenziso oluguquguqukayo kuwo wonke amashishini, kubandakanya ulwakhiwo, ezothutho, kunye nezinto eziluncedo. Ukusuka ekuqinisekiseni iindawo zokufikelela kwiipali zoncedo ukuya ekuboneleleni ngendlela ekhuselekileyo kumaqonga aphakamileyo, ezi bholiti zibonelela ngezisombululo ezithembekileyo zokuqinisa iziseko zoncedo nezixhobo ezahlukeneyo.

Ukukhethwa kwezinto:Ifumaneka kuluhlu lwezinto eziphathekayo, ezibandakanya i-carbon steel, insimbi engenasici, kunye ne-alloys non-ferrous, i-bolts yesinyathelo inokuthi ilungele ukuhlangabezana neemfuno ezithile zokusingqongileyo kunye nokusebenza. Iingqwalasela zokukhetha izinto eziphathekayo zibandakanya ukuxhathisa umhlwa, amandla, kunye nokuhambelana nezinto zokukhwelana.

Iinketho Zokulungiselela:Iibholiti zenyathelo zinokwenziwa ngokwezifiso kunye neempawu ezinje nge-anti-corrosion coatings, iindlela zokutshixa imisonto, okanye ukugqiba okukhethekileyo ukunyusa ukusebenza kwazo kunye nobomi obude kwiimeko ezithile zokusebenza. Ukwenza ngokwezifiso kuqinisekisa ukuba iibholithi zihlangabezana neemfuno ezizodwa zesicelo ngasinye ngokufanelekileyo.

Ukuthotyelwa kweMigangatho:Ukudibana nemigangatho yoshishino efana ne-ASTM kunye ne-ANSI iqinisekisa umgangatho kunye nokuthembeka kweebholithi zesinyathelo. Ukuthotyelwa kwale migangatho kunika isiqinisekiso sokusebenza kunye nokuhambelana, oko kubenza ukhetho oluthembekileyo lweziseko ezingundoqo kunye neeprojekthi zokwakha.

Ukufakela kunye noLondolozo:Ukufakela okufanelekileyo kunye nokugcinwa kwamaxesha kubalulekile ekukhuliseni ukusebenza kunye nokuphila kwee-bolts zesinyathelo. Ukulandela imilinganiselo yetorque ecetyiswayo kunye namaxesha okuhlola kunceda ukuqinisekisa ingqibelelo yokuqinisa esona sizathu kunye nokuthintela ukusilela kwangaphambi kwexesha.

Ubungakanani bomsonto
d

10#

1/4

5/16

3/8

7/16

1/2

d
PP	UNC
d_s	max
	imiz
d_k	max
	imiz
k	max
	imiz
s	max
	imiz
k₁	max
	imiz

0.1900	0.2500	0.3125	0.3750	0.4375	0.5000
24	20	18	16	14	13
0.199	0.260	0.324	0.388	0.452	0.515
0.182	0.237	0.298	0.360	0.421	0.483
0.656	0.844	1.031	1.219	1.406	1.594
0.625	0.813	1.000	1.188	1.375	1.563
0.114	0.145	0.176	0.208	0.239	0.270
0.094	0.125	0.156	0.188	0.219	0.250
0.199	0.260	0.324	0.388	0.452	0.515
0.185	0.245	0.307	0.368	0.431	0.492
0.125	0.156	0.187	0.219	0.250	0.281
0.094	0.125	0.156	0.188	0.219	0.250

①,Ubuncinane bobude bomsonto:
Ubuncinane bobude bomsonto buyakulingana nedayamitha yebholiti esisiseko ephindwe kabini kunye ne-0.25 kubude obuqhelekileyo bebholithi ye-6 ngaphakathi okanye mfutshane, kwaye kabini idiamitha yebhawudi esisiseko kunye ne-0.50 kubude obude begama.
Iibholithi zobude begama elifutshane kakhulu ukuba zivumelane nobude bomsonto obuncinane ziya kuphoswa ngobude obupheleleyo. Ubude ukusuka entloko okanye entanyeni ukuya kwimisonto yokuqala epheleleyo (ifomu epheleleyo) ayiyi kudlula ubude bemisonto ye-2-1 / 2 yobukhulu ukuya kuthi ga ku-1 ngaphakathi. .