We are Leading Group in Lead & Lead Product Manufacturing that provides Good quality Lead. Our Lead is suitable for Lead Sheath Making. We are also in business of importing Lead as a scrap from Lead Sheath Wire Making companies. We import various raw materials such as Lead Acid Battery Scrap (ISRI- RAINS), Battery Plates (ISRI -RAILS), All sort of Lead Scrap, Raw / Re-melted Lead Bullion, Lead Ore/ Lead Concentrate /Lead Scrap from Lead Sheath etc. from various countries.
In Lead cable sheathing, liquid metal is poured into a vertical container. Usually, it is filled from an electrically heated crucible containing several tons of the melt through a floor valve with various flow systems at a maximum temperature of 450 C.The cast Lead should bond well with the discard from the previous filling on the die head to prevent possible defects from inclusions. Air blisters should not form during filling. The Lead is, therefore, usually filled under vacuum together with a lost head that is sheared after solidification at the top edge of the container. The metal solidifies in water cooled container under a small load applied by the steam within 5 to 10 minutes after which the extrusion process can begin.The metal then flows into the bifurcated hollow mandrel from two sides and is pressed into the prechamber. It is then pressed onto the cable and forms the cable mantel as it leaves the die.The material flow necessities longitudinal weld. Particular attention must be paid to these potential sources of defects. The boundary surface between the extruded and the newly filled metal (transverse weld) extend as a tongue over approximately 20% of an extrusion charge and can be scarcely recognized by metallography.
We are Leading Group in Lead Lead ProductManufacturing that provides Good quality Lead. Our Lead is suitable for Lead Sheath Making. We are also in business of importing Lead as a scrap from Lead Sheath Wire Making companies. We import various raw materials such as Lead Acid Battery Scrap (ISRI- RAINS), Battery Plates (ISRI -RAILS), All sort of Lead Scrap, Raw / Re-melted Lead Bullion, Lead Ore/ Lead Concentrate /Lead Scrap from Lead Sheath etc. from various countries.Lead was one of the first materials to be used to provide an impervious sheath on electric cables.Lead Sheath Cable A Lead Sheath is available on many types of wire and cable insulations. This sheath is completely moisture proof and very durable. Where both mechanical strength and moisture resistance are required, a combination of Lead sheath and armor can be used. Underground ducts and wet locations are typical areas where Lead-sheathed cables are used.Lead has the major advantage that it can be applied to the cable core in unlimited lengths by extrusion at temperatures which do not damage even the most sensitive conductors (optical fibers) or insulating materials (paper or plastics). Lead is pliable and so can withstand the several coiling, uncoiling, handling and bending operations involved during the later manufacturing stages and installation of the cable. A Lead sheath can be readily soldered (again at low temperatures) when cable lengths need to be jointed or new cables installed. With modern screw-type continuous extruders, un jointed lengths of submarine power cables as long as 100 kilometers have been produced.
A Lead Sheath is available on many types of wire and cable insulations. This sheath is completely moisture proof and very durable. Where both mechanical strength and moisture resistance are required, a combination of Lead sheath and armor can be used. Underground ducts and wet locations are typical areas where Lead-sheathed cables are used.