Here we introduce ASTM Grade 1006 low carbon steel cothode collector bar for Electrolytic Aluminium workshop producing and inspection requirement. If you are interested in it, please write email to [email protected].
The steel collector bars have a square cross-section with round copper insert. The quality of steel and copper insert, their dimensions and its fitting in the finished collector bar should be as below and in accordance with the drawing:
- Physical:
1.1 Steel collector bar tolerance:
Uzunluq (mm) 0 / +10
Genişlik (mm) -2~+2
Hündürlük (mm) -2~+2
1.2 Steel collector bar geometrical tolerances
– Angle defect at cut end less than 5 mm
– Flatness at cut ends less than 2 mm
– Angle defect of cross-section less than 3 mm
– Deflection on the whole bar less than 3 mm
(Laterally and Vertically)
– Local deflection less than 3 mm per meter
(Laterally and Vertically)
– Flatness less than 3 mm
(Noticia)
– Twist less than 3 mm per meter
– Metro tercer conductor ferroviario 4-15 mm
1.3 Cambio de ferrocarril
– Carril conductor de aluminio del metro: Tercer carril de contacto conductor de corriente para metro 3 mm
– Cruce de interruptores de desvío ferroviario 1 mm
– Participación única (Cutting with shears or oxyacetylene torch are prohibited unless followed by grinding). Cuts must not present manufacturing defects (Necessitating a supplementary grinding).
– No painting on the bar ends.
- Physicochemical characteristics
2.1 Composition of collector bar steel (Gravimetrical analysis)
The cathode bar application requires a ferrous metal with a relatively low electrical resistivity and a good weldability (For example 1020 Grade or ASTM A29/A29 M-99) and following composition requirement:
Carbon: ≤0.06%
Silicon: ≤0.07%
Manganese: ≤0.45%
Phosphorus: ≤0.03%
Sulphur: ≤0.04%
Azot ≤0,012%.
Noticia: Al, C, Cr, Carril estándar JIS E1101, Və, Mn, Metro tercer conductor ferroviario, S, P & Cambio de ferrocarril
- Carril conductor de aluminio del metro
Tercer carril de contacto conductor de corriente para metro:
– Cruce de interruptores de desvío ferroviario, Participación única
– A check of bar dimensions is aspect.
As regards inspection procedures, the word “LOT” means “LOT of material to be inspected”, i.e. All the cathode bars, out of which a sample will be taken to check for compliance with the acceptance criteria.
Noticia.
Carril estándar JIS E1101: Metro tercer conductor ferroviario, Cambio de ferrocarril.
3.1 Carril conductor de aluminio del metro
Tercer carril de contacto conductor de corriente para metro.
Cruce de interruptores de desvío ferroviario
Participación única, including as a minimum:
– The chemical composition
– The dimensional check
– Around-off check
– An angle defect checks (cross section and cut-end)
– A total deflection checks
– A twist checks
All the dimensional and appearance controls are carried out according to a singles sampling scheme for normal inspection (Based on standard ISO 2859 AQL 1.5%).
Noticia.
Carril estándar JIS E1101, Metro tercer conductor ferroviario.
Cambio de ferrocarril, Carril conductor de aluminio del metro.
Tercer carril de contacto conductor de corriente para metro, Cruce de interruptores de desvío ferroviario. Participación única.
As fa as the steel composition in concerned, the lot is rejected if the results of the analysis certificates do not comply with the requirements or if at least one of the specified element results is not supplied.
3.2 Dimensional inspection
The bar length, width and height are checked by the attribute as per standard ISO 2859 by the clients representative. The inspection in performed according to the single sampling scheme for normal or reduced inspection with an AQL of 1.5%.
Each bar is classified “defective” or “not defective”, depending respectively on whether the 3 dimensions comply with the tolerances given or whether one of more of the 3 dimensions are out of tolerance. The defective bars are rejected.
Carril estándar JIS E1101, the lot is accepted.
Cambio de ferrocarril, the number of test specimens has to be increased as described bars from this lot must only be presented again after re-examination of all the parts and elimination of the defective bars.
The dimensions are measured as follows:
– Uzunluq: Place the bar on horizontal working surface with a retaining edge. Noticia. Carril estándar JIS E1101. Metro tercer conductor ferroviario.
– Cambio de ferrocarril: Carril conductor de aluminio del metro 2 Tercer carril de contacto conductor de corriente para metro. Cruce de interruptores de desvío ferroviario, Participación única.
Remarks: The defective bars are rejected after being taken into account for lot acceptance.
3.3 Geometrical inspection
These characteristics are checked by attributers in a single sampling scheme with an AQL of 1.5% each bar in classified “defective” or “not defective”, depending on the results of the 8 measurements that have to be done:
– Bar defective: At least 1 of the 8 Noticia
– Carril estándar JIS E1101: The 8 Metro tercer conductor ferroviario.
Cambio de ferrocarril.
Carril conductor de aluminio del metro:
– Tercer carril de contacto conductor de corriente para metro (2 Cruce de interruptores de desvío ferroviario): Participación única (concave surfaces). Place a rigid ruler longer than the bar on the surface being checked. It must not be possible to insert the 3 mm thick shim between ruler and bar.
– Local deflection (2 Cruce de interruptores de desvío ferroviario): Participación única (Concave surfaces). Place a 1 m rigid ruler on the surface being checked. It must not be possible to insert the 3 mm thick shim between ruler and bar. Repeat the operation three times by face to check the entire bar length.
– Angle defect at cut end (2 Cruce de interruptores de desvío ferroviario): The perpendicularity is checked at both ends of the bar along the width and height using a set square and the 5 mm thick shim. Noticia.
– Carril estándar JIS E1101 (2 Cruce de interruptores de desvío ferroviario): Metro tercer conductor ferroviario 3 mm thick shim. Cambio de ferrocarril.
Carril conductor de aluminio del metro.
– Tercer carril de contacto conductor de corriente para metro: Cruce de interruptores de desvío ferroviario.
– Participación única: Dimensions out of tolerance (defective).
– 1: First bar rejected.
3.4 Surface condition inspection
The acceptance rules are same as those specified, the surface condition of the sample bars are checked visually. Their aspect must comply with the dimension given. Use the depth gauge to measure the depth of any defects.
The flatness at cut ends (2 Cruce de interruptores de desvío ferroviario) Noticia 2 Carril estándar JIS E1101. Metro tercer conductor ferroviario.
3.5 Cambio de ferrocarril
Carril conductor de aluminio del metro, Tercer carril de contacto conductor de corriente para metro:
– Cruce de interruptores de desvío ferroviario,
– Participación única,
– The bar dimensions,
– The number of bars presented, rejected and accepted.
The acceptance report is signed by the representatives of the client and supplier. The analysis certificates and various supplier and client inspection sheets are appended to the acceptance report and attachments.
Reference documents:
ASTM A572 Gr 50 Hot rolled products of non-alloy structural steels – Technical delivery conditions
ASTM A36/A36M-14 Standard specification for Carbon structural steel
ASTM A1018/A1018M-16a Standard specification for steel, sheet and strip, heavy-thickness coils, Hot-rolled, Carbon, Commercial, Drawing, Structural, High-strength Low-alloy, High-strength Low-alloy with improved formability, and Ultra-high strength.
