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Litekanyo tsa Mofuta oa I Cross Recessed Pan Head Screw (ASTM F837, F468)

Etsa bonnete ba ho tiisa ka mokhoa o ts'eptjoang ka li-Screws tsa Mofuta oa I Cross Recessed Pan Head, tse kopanang le litekanyetso tsa ASME B 18.6.3 - 2013. Ka moaho oa bona o tšoarellang le ho kenya habonolo, li-screw tsena li loketse lits'ebetso tse fapaneng liindastering tsohle.

Mohlala:ASME B 18.6.3

Romela Lipatlisiso

Tlhaloso ea Sehlahisoa

Melao e Tloaelehileng:Mofuta oa I Cross Recessed Pan Head Screws o lumellana le litlhaloso tse thata tse hlalositsoeng ho ASME B 18.6.3 - 2013, ho netefatsa botsitso le ho lumellana ho pholletsa le likopo. Ho kopana le litekanyetso tsa ASTM F837 le F468, li-screws tsena li tiisa ho ts'epahala le ts'ebetso.

Moqapi oa Pan Head:E entsoe ka tlhophiso ea hlooho ea pan, li-screws tsena li fana ka ponahalo e tlase e nang le bokaholimo bo nang le sephara. Moqapi ona o fana ka sebaka se lekaneng sa ho ikopanya bakeng sa ho aba matla a mojaro, ho matlafatsa botsitso le ho thibela tšenyo ea holim'a metsi.

Cross Recessed Drive:E na le "cross recessed drive", "screws" tsena li thusa ho kenya habonolo ka lisebelisoa tse tsamaellanang. Koloi e khutlisitsoeng e fokotsa ho thella nakong ea ho tiisa, ho netefatsa ho tiisa ka mokhoa o sireletsehileng le ho fokotsa kotsi ea tšenyo ea hlooho ea screw.

Tšebeliso e fapaneng:Mofuta oa I Cross Recessed Pan Head Screws o loketse mefuta e mengata ea likopo, ho kenyeletsoa lisebelisoa tsa elektroniki, mechini le kopano ea thepa ea ka tlung. Moralo oa bona o feto-fetohang le ts'ebetso e tšepahalang li etsa hore e be tsa bohlokoa bakeng sa litlhoko tse fapaneng tsa ho itima lijo.

Boholo ba Khoele
d

7# ^③

10#

12#

14# ^③

d	Boholo ba Lebitso
PP	UNC
d_k	max
	min
k	max
	min
R	min
M	Ref.
Sokete No.	Boholo ba Mokhanni
P	Recess Penetration Gaging Depth	max
		min

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510	0.1640	0.1900	0.2160	0.2420
/	64.0	56.0	48.0	40.0	40.0	32.0	/	32.0	24.0	24.0	/
0.116	0.142	0.167	0.193	0.219	0.245	0.270	0.296	0.322	0.373	0.425	0.476
0.104	0.130	0.155	0.180	0.205	0.231	0.256	0.281	0.306	0.357	0.407	0.457
0.044	0.053	0.062	0.071	0.080	0.089	0.097	0.106	0.115	0.133	0.151	0.169
0.036	0.044	0.053	0.062	0.070	0.079	0.087	0.096	0.105	0.122	0.139	0.156
0.005	0.005	0.010	0.010	0.010	0.015	0.015	0.015	0.015	0.020	0.025	0.035
0.060	0.067	0.097	0.105	0.115	0.152	0.159	0.170	0.175	0.192	0.252	0.274
0	0	1	1	1	2	2	2	2	2	3	3
0.032	0.040	0.052	0.061	0.071	0.072	0.080	0.089	0.097	0.113	0.124	0.144
0.014	0.022	0.034	0.043	0.053	0.046	0.055	0.064	0.071	0.089	0.098	0.118

Boholo ba Khoele
d

1/4

16# ^③

18# ^③

5/16

20# ^③

24# ^③

3/8

7/16

1/2

9/16 ^④

5/8 ^④

3/4 ^④

d	Boholo ba Lebitso
PP	UNC
d_k	max
	min
k	max
	min
R	min
M	Ref.
Sokete No.	Boholo ba Mokhanni
P	Recess Penetration Gaging Depth	max
		min

0.2500	0.2680	0.2940	0.3125	0.3200	0.3720	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500
20.0	/	/	18.0	/	/	16.0	14.0	13.0	12.0	11.0	10.0
0.492	0.528	0.579	0.615	0.631	0.734	0.740	0.863	0.987	1.041	1.172	1.435
0.473	0.508	0.558	0.594	0.608	0.709	0.716	0.837	0.958	1.000	1.125	1.375
0.175	0.187	0.205	0.218	0.223	0.259	0.261	0.305	0.348	0.391	0.434	0.521
0.162	0.173	0.191	0.203	0.208	0.242	0.244	0.284	0.325	0.366	0.406	0.488
0.035	0.035	0.035	0.040	0.040	0.040	0.040	0.050	0.055	0.065	0.075	0.085
0.274	0.286	0.328	0.343	0.344	0.382	0.382	0.406	0.428	0.458	0.575	0.621
3	3	4	4	4	4	4	4	4	4	5	5
0.144	0.158	0.158	0.173	0.173	0.213	0.213	0.239	0.260	0.292	0.310	0.349
0.118	0.132	0.134	0.149	0.149	0.190	0.190	0.214	0.235	0.268	0.281	0.322

③,7#, 14#, 16#, 18#, 20#, 24# ke tsa dikurufu tsa ho tlanya feela.
④,9/16, 5/8, 3/4 ke tsa likurufu tsa mochini feela.
⑤, Bophara ba 'mele holim'a likurufu tsa mochini tse nang le lihlooho tse ling ntle le li-trim ha boa lokela ho ba ka tlase ho bophara ba khoele ea Class 2A kapa bo boholo ho feta bophara bo boholo ba khoele.
⑥, Bolelele ba Screw ea Mochini oa Khoele
1) Boholo No.5 le tse nyenyane.
Li-crews tsa bolelele bo lekanang le li-diameter tse tharo le tse khuts'oane li tla ba le likhoele tse felletseng tse fihlang ka har'a khoele e le 'ngoe ea khoele.
e jereng bokahodimo ba hlooho, kapa haufi, haeba ho kgoneha. Bolelele bo boholo ho feta li-diameter tse tharo, ho fihla le ho kenyelletsa 1-1/8 in., e tla ba le
likhoele tse nang le sebopeho se felletseng tse fihlang ka har'a likhoele tse peli (likhoele) tsa bokaholimo ba hlooho, kapa haufi, haeba ho khonahala. Li-crews tse telele
bolelele ba lebitso, ntle le ha bo hlalositsoe ka tsela e 'ngoe, bo na le bonyane bolelele ba khoele e felletseng ea 1 in.
2) Boholo No.6 le tse nyenyane.
Li-crews tsa bolelele bo lekanang le li-diameter tse tharo le tse khuts'oane li tla ba le likhoele tse felletseng tse fihlang ka har'a khoele e le 'ngoe ea khoele.
e jereng bokahodimo ba hlooho, kapa haufi, haeba ho kgoneha. Bolelele bo boholo ho feta li-diameter tse tharo, ho fihla le ho kenyelletsa 2 in., bo tla ba le
likhoele tse nang le sebopeho se felletseng tse fihlang ka har'a likhoele tse peli (likhoele) tsa bokaholimo ba hlooho, kapa haufi, haeba ho khonahala. Li-crews tse telele
bolelele ba lebitso bo tla ba le bolelele ba bonyane ba khoele e felletseng ea 1.5 in. ntle le ha ho boletsoe ka tsela e 'ngoe.
⑦, Lisebelisoa tsa Screw tsa Mochini
1) tšepe e tlase ea khabone e se nang mocheso, joalo ka1006 ho isa ho 1038
2) Ha ho boletsoe sekoti sa mochini o thata, se tla etsoa ka tšepe e tlase kapa e mahareng, joalo ka 1018 ho isa ho 1038, e nang le boron kapa ntle le eona, e thatafalitsoeng ho Rockwell C25-38.

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