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Ụdị II Cross Recessed Flat Countersunk Head Tapping Screws - Ụdị B na BP Thread Forming [Table 12]

Ahụmịhe nhazi eri nke ọma na ntinye nchekwa na ụdị II cross recessed flat countersunk head tapping skru na-egosipụta ikike imepụta ụdị B na BP, dabara na ụkpụrụ ASME B 18.6.4 - 1998. Họrọ ntụkwasị obi na ntụgharị maka mkpa mgbakọ gị.

Nlereanya:ASME B 18.6.4

Zipu ajụjụ

Nkọwa ngwaahịa

Nhazi eriri nke ọma:ASME B 18.6.4 - 1998 kwadoro Ụdị II cross recessed flat countersunk head tapping skru na Ụdị B na BP eri akpụ ike hụ na e guzobere eri nke ọma n'oge echichi. Njirimara a na-eme ka usoro mgbakọ ahụ dị mfe site n'iwepụ mkpa ọ dị tupu-egwupụta ihe.

Nkwado echekwabara:Ejiri skru ndị a nwere ụdị B na eriri BP na-akpụ ike, na-eme ka ntinye nchekwa na ntụkwasị obi sie ike. Ha na-eme ka njide siri ike, na-ebelata ihe ize ndụ nke ịtọpụ ma ọ bụ ịkwapụ, si otú ahụ na-eme ka iguzosi ike n'ezi ihe nke ihe ndị gbakọtara na ngwa dị iche iche.

Ngwa dịgasị iche iche:Kwesịrị ekwesị maka iji ihe dị iche iche, gụnyere ígwè, plastik, na osisi, skru ndị a na-eme ihe na-enye mgbanwe n'ofe ụlọ ọrụ dị iche iche. Nkwekọrịta ha na ihe dị iche iche na-eme ka ha dị mma maka ịrụ ọrụ, ịrụ osisi na ịrụ ọrụ ígwè.

Ihe owuwu na-adịgide adịgide:Emebere ya site na ihe ndị dị elu, a na-ewu skru ndị a maka ịdịte aka na nguzogide corrosion, na-eme ka arụmọrụ ogologo oge na gburugburu ebe dị egwu. Ihe owuwu ha siri ike na-eme ka ha dị mma maka ngwa ime ụlọ ma n'èzí.

Ọnụ ala dayameta
d

1 #

6 #

d	Nha aha
L	min
d_k	max
d_k	min
k	Ref.
M	Ref.
t	Ref.
N	Ref.
Omimi ntinye	max
Omimi ntinye	min

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510
1/8	5/32	3/16	7/32	1/4	1/4	5/16	3/8
0.112	0.137	0.162	0.187	0.212	0.237	0.262	0.287
0.096	0.120	0.144	0.167	0.191	0.215	0.238	0.262
0.035	0.043	0.051	0.059	0.067	0.075	0.083	0.091
0.078	0.092	0.114	0.133	0.151	0.169	0.188	0.206
0.036	0.048	0.060	0.072	0.082	0.094	0.106	0.118
0.021	0.024	0.027	0.030	0.032	0.035	0.038	0.040
-	-	0.040	0.053	0.064	0.077	0.089	0.101
-	-	0.029	0.041	0.052	0.064	0.075	0.087

Ọnụ ala dayameta
d

10 #

12#

1/4

5/16

3/8

7/16

1/2

d	Nha aha
L	min
d_k	max
d_k	min
k	Ref.
M	Ref.
t	Ref.
N	Ref.
Omimi ntinye	max
Omimi ntinye	min

0.1640	0.1900	0.2160	0.2500	0.3125	0.3750	0.4375	0.5000
7/16	1/2	9/16	5/8	5/8	5/8	3/4	3/4
0.312	0.362	0.412	0.477	0.597	0.717	0.760	0.815
0.285	0.333	0.380	0.442	0.556	0.670	0.715	0.765
0.100	0.116	0.132	0.153	0.191	0.230	0.223	0.223
0.224	0.260	0.297	0.344	0.432	0.509	0.554	0.593
0.124	0.148	0.172	0.195	0.252	0.302	0.332	0.358
0.043	0.048	0.054	0.061	0.074	0.086	0.092	0.098
0.113	0.137	0.162	0.193	0.251	0.303	0.332	0.359
0.099	0.122	0.145	0.176	0.232	0.281	0.310	0.335

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