型號: | - |
---|---|
品牌: | 維高鑽具 |
原產地: | 中國 |
類別: | 工業設備 / 礦業設備 |
標籤︰ | 石油鑽具 , 無磁 , 鑽鋌 |
單價: |
-
|
最少訂量: | 1 件 |
最後上線︰2019/03/09 |
無磁鑽鋌的尺寸規格
鑽鋌編號 |
外徑D |
內徑d |
長度L mm |
台肩倒角 直徑DF mm |
彎曲強度比 |
||
mm |
in |
mm |
in |
||||
NC23-31 |
79.4 |
3 1/8 |
31.8 |
1 1/4 |
9150 |
76.2 |
2.57:1 |
NC26-35 |
88.9 |
3 1/2 |
38.1 |
1 1/2 |
9150 |
82.9 |
2.42:1 |
NC31-41 |
104.8 |
4 1/8 |
50.8 |
2 |
9150或9450 |
100.4 |
2.43:1 |
NC35-47 |
120.7 |
4 3/4 |
50.8 |
2 |
9150或9450 |
114.7 |
2.58:1 |
NC38-50 |
127.0 |
5 |
57.2 |
2 1/4 |
9150或9450 |
121.0 |
2.38:1 |
NC44-60 |
152.4 |
6 |
57.2 |
2 1/4 |
9150或9450 |
144.5 |
2.49:1 |
NC44-60 |
152.4 |
6 |
71.4 |
2 13/16 |
9150或9450 |
144.5 |
2.84:1 |
NC44-62 |
158.8 |
6 1/4 |
57.2 |
2 1/4 |
9150或9450 |
149.2 |
2.91:1 |
NC46-62 |
158.8 |
6 1/4 |
71.4 |
2 13/16 |
9150或9450 |
150.0 |
2.63:1 |
NC46-65 |
165.1 |
6 1/2 |
57.2 |
2 1/4 |
9150或9450 |
154.8 |
2.76:1 |
NC46-65 |
165.1 |
6 1/2 |
71.4 |
2 13/16 |
9150或9450 |
154.8 |
3.05:1 |
NC46-67 |
171.4 |
6 3/4 |
57.2 |
2 1/4 |
9150或9450 |
159.5 |
3.18:1 |
NC50-67 |
171.4 |
6 3/4 |
71.4 |
2 13/16 |
9150或9450 |
159.5 |
2.37:1 |
NC50-70 |
177.8 |
7 |
57.2 |
2 1/4 |
9150或9450 |
164.7 |
2.54:1 |
NC50-70 |
177.8 |
7 |
71.4 |
2 13/16 |
9150或9450 |
164.7 |
2.73:1 |
NC50-72 |
184.2 |
7 1/4 |
71.4 |
2 13/16 |
9150或9450 |
169.5 |
3.12:1 |
NC56-77 |
196.8 |
7 3/4 |
71.4 |
2 13/16 |
9150或9450 |
185.3 |
2.70:1 |
NC56-80 |
203.2 |
8 |
71.4 |
2 13/16 |
9150或9450 |
190.1 |
3.02:1 |
6 5/8REG |
209.6 |
8 1/4 |
71.4 |
2 13/16 |
9150或9450 |
195.7 |
2.93:1 |
NC61-90 |
228.6 |
9 |
71.4 |
2 13/16 |
9150或9450 |
212.7 |
3.17:1 |
7 5/8REG |
241.3 |
9 1/2 |
76.2 |
3 |
9150或9450 |
223.8 |
2.81:1 |
NC70-97 |
247.6 |
9 3/4 |
76.2 |
3 |
9150或9450 |
232.6 |
2.57:1 |
NC70-100 |
254.0 |
10 |
76.2 |
3 |
9150或9450 |
237.3 |
281:1 |
8 5/8REG |
279.4 |
11 |
76.2 |
3 |
9150或9450 |
266.7 |
2.84:1 |
無磁鑽鋌的主要公差尺寸
外徑範圍 |
外徑D |
內徑d |
長度L |
台肩倒角直徑DF |
|
|
mm |
in |
|||||
≤88.9 |
≤3 1/2 |
+1.2 0 |
+1.6 0 |
+152.4 |
±0.4 |
|
>88.9~114.3 |
>3 1/2~4 1/2 |
+1.6 0 |
||||
>114.3~139.7 |
>4 1/2~5 1/2 |
+2.0 0 |
||||
>139.7~165.1 |
>5 1/2~6 1/2 |
+3.2 0 |
||||
>165.1~215.9 |
>6 1/2~8 1/2 |
+4.0 0 |
||||
>215.9~241.3 |
>8 1/2~9 1/2 |
+4.8 0 |
||||
>241.3 |
>9 1/2 |
+6.4 0 |
無磁鑽鋌的力學性能
外徑範圍 |
屈服強度 σ0.2 MPa |
抗拉強度 σb MPa |
伸長率 δ4 % |
|
|
mm |
in |
||||
79.4~171.4 |
3 1/8~6 3/4 |
≥758 |
≥827 |
≥18 |
|
177.8~279.4 |
7~11 |
≥689 |
≥758 |
≥20 |
|
磁性能(磁場=1×105/4πA/m)
1. 相對磁導率Ur<1.010
2. 磁場梯度:ΔB≤0.05μT