Development of Automatic Inside Diameter Gauge for Arm Vane

DENKI-SEIKO ◽  
2008 ◽  
Vol 79 (4) ◽  
pp. 337-344
Author(s):  
Daisuke Mori ◽  
Hiroshi Watanabe ◽  
Sakae Satoh
Keyword(s):  
Inside Diameter

A Replica Technique for the Inside Surfaces of Small Diameter Pipes and Tubes

1967 ◽  
Vol 25 ◽  
pp. 352-353
Author(s):  
T. G. Gregory
Keyword(s):  
Polyvinyl Chloride ◽  
Small Diameter ◽  
Replica Technique ◽  
Tube Size ◽  
Inside Diameter ◽  
Complete Inspection ◽  
Operating Limits

A nondestructive replica technique permitting complete inspection of bore surfaces having an inside diameter from 0.050 inch to 0.500 inch is described. Replicas are thermally formed on the outside surface of plastic tubing inflated in the bore of the sample being studied. This technique provides a new medium for inspection of bores that are too small or otherwise beyond the operating limits of conventional inspection methods.Bore replicas may be prepared by sliding a length of plastic tubing completely through the bore to be studied as shown in Figure 1. Polyvinyl chloride tubing suitable for this replica process is commercially available in sizes from 0.037- to 0.500-inch diameter. A tube size slightly smaller than the bore to be replicated should be used to facilitate insertion of the plastic replica blank into the bore.

SANDVIK 310/T22

Alloy Digest ◽  
1994 ◽  
Vol 43 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Composite Tube ◽  
Design Load ◽  
Inside Diameter ◽  
Superheater Tube ◽  
310 Stainless Steel ◽  
Outside Diameter ◽  
Load Carrier

Abstract SANDVIK 310/T22 is a composite tube consisting of Type 310 stainless steel for corrosion resistance on the outside diameter and having T22 (21/4 Cr-1Mo) to A213 on the inside diameter to act as the superheater tube and design load carrier. This datasheet provides information on composition. It also includes information on forming and joining. Filing Code: SA-477. Producer or source: Sandvik.

Shell Body Nose Forming by Rotary Swaging Process

2011 ◽  
Vol 213 ◽  
pp. 221-225 ◽  
Author(s):  
Jeong Hwan Jang ◽  
Byeong Don Joo ◽  
Sung Min Mun ◽  
Young Hoon Moon
Keyword(s):  
Finite Element ◽  
Initial Thickness ◽  
Dimensional Changes ◽  
Rotary Swaging ◽  
Inside Diameter ◽  
Before And After ◽  
Forming Characteristics ◽  
Inner Diameter ◽  
The Given ◽  
Diameter Reduction

Studies on the forming characteristics by a rotary swaging process using the sub-scale specimens have been carried out to obtain a shell body nose of desirable quality. To analyze the changes of the nose thickness and length at the respective reduction of inside diameter, the finite element simulations were carried out. As a result, the desired target dimension is satisfied with the diameter reduction of more than 64 % for the given preform. The thickness of nose area increased up to 56.1 % from initial thickness of 2.62 mm to 4.09 mm after swaging. The values of the hardness before and after swaging were 208 HV and 325 HV, respectively. To analyze the dimensional changes (length and thickness) of nose area with decreasing inside diameter, the rotary swaging test was carried out for two different diameter reductions such as 65 % and 67 %. The lengths of nose area for the diameter reductions are 11.79 mm in 65 % and 12.53 mm in 67 %, respectively. At the diameter reduction of more than 67%, the crack occurs when the localized strain hardening reduces ductility in internal area. Therefore, the nose area should be formed from 64% to 67% reduction in target inner diameter.

P PENANGGULANGAN SCALE CaCO_3 PADA SUMUR PF1 LAPANGAN 26 DI PT PERTAMINA EP ASSET 2 FIELD LIMAU

2019 ◽  
Vol 9 (02) ◽  
pp. 35-45
Author(s):  
Roni Alida ◽  
Prima Fandra
Keyword(s):  
Productivity Index ◽  
Soft Scale ◽  
Hard Scale ◽  
Inside Diameter

Scale merupakan suatu endapan yang mengkristal dari air formasi di suatu bidang khusunya flowline yang dipengaruhi oleh beberapa faktor seperti suhu, pH, tekanan, dan kandung ion senyawa kimia yang ada di air formasi tersebut. Jenis- jenis scale ialah hard scale, soft scale dan misc. Scale dapat  mengganggu laju alir dari suatu sumur dikarenakan scale dapat membuat pengecilan inside diameter (ID) dari pipa produksi. Pada sumur PF1 Lapangan 26 yang ada di PT Pertamina EP Asset 2 Field Limau, scale terbentuk di-flowline, karena adanya peningkatan tekanan pada flowline. Pada sumur ini scale yang terbentuk berjenis CaC. Hal ini  dibuktikan dengan kandungan ion senyawa kimia yang ada di air formasinya dan telah dilakukannya perhitungan mengunakan metode Stiff Davis dengan SI 1.17. Scale ini hanya akan larut pada asam, sesuai dengan karakteristik scale tersebut. Pada situasi ini asam  yang digunakan untuk proses penanggulangan berjenis asam HCl. Setelah proses penanggulangan scale CaC dilakukan, hasil evaluasi terlihat pada Productivity index (PI) dan Trend produksi di Sumur PF1 Lapangan 26 terjadi peningkatan. Sehingga proses penanggulangan scale CaC tersebut dikatakan berhasil.

Prestressed 4-m inside-diameter concrete pipe for a high-pressure aqueduct

1968 ◽  
Vol 2 (2) ◽  
pp. 108-111
Author(s):  
V. S. Konviz ◽  
V. D. Novozhenin ◽  
A. D. Osipov
Keyword(s):  
High Pressure ◽  
Inside Diameter ◽  
Concrete Pipe

Pipe inside diameter key to energy efficiency

2014 ◽  
Vol 106 (6) ◽  
pp. 42-50 ◽  
Author(s):  
Maury D. Gaston ◽  
Carson Smith ◽  
James C. Hogeland
Keyword(s):  
Energy Efficiency ◽  
Inside Diameter

scholarly journals New Cold-Expansion Process for End Sizing and Dimensional Precision of Inside Geometry on Both Ends of Line Pipes

2007 ◽  
Author(s):  
Kouichi Kuroda ◽  
Tsutomu Arita ◽  
Takahiro Takano ◽  
Hajime Oosako ◽  
Tatsuya Okui ◽  
...  
Keyword(s):  
Axial Direction ◽  
High Dimensional ◽  
Deep Insight ◽  
Expansion Process ◽  
Line Pipe ◽  
Cold Expansion ◽  
Dimensional Precision ◽  
Inside Diameter ◽  
Insertion Method ◽  
Smooth Contact

Cold-expansion process has been developed for ensuring dimensional precision of inside geometry on the end portions of line pipe. For expanding the inside diameter of line pipe, a plug insertion method by cold press in the axial direction from the end side was finally adopted. As the nature of end sizing operation, only very small amount of cold plastic strain is applicable by cold expansion, and in order to realize the high dimensional precision of end portion a special geometry of the plug had to be designed. If a single-taper plug is adopted the expanded portion tends to overshoot and the inside diameter of expanded portion is larger than the plug diameter. The new plug design allows smooth contact of the inside surface expanded by the inlet portion of the plug on the bearing portion of the plug and no overshooting phenomenon occurs. One of the simplest designs of this type of plug for practical use is a double-taper plug, and finite element method was carried out in order to determine the practical range of the plug geometry referring to the deep insight on the mechanism of expansion process.

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