We offer Lancing Equipment. Oxygen is used in the manufacture of metals like Steel, Copper and Zinc. Chlorine is used in the manufacture of Aluminium. These gases react with the undesirable impurities and form their respective oxide or chlorides. These oxides or chlorides then float to the surface of the molten metal and are removed.
The underwater Cutting Lance has many uses in industry for both dry and wet applications alike, such as cutting steel bracings on offshore structures, pipelines, removing jetty and pier foundations, cutting through concrete caissons, vessels, propellers and other types of marine salvage. Each lance is constructed from a copper coated seamless steel tube 9.5mm (3/8") OD x 450mm (18") long. The tubes are all fitted with high visibility polyolefin tubing for easy use and improved safety. All underwater Cutting Lances are packed to prevent oil and grease contamination.
It will cut through the following materials with ease :
Thermal Lances is used as one of the methods of boring and severing steel, cast iron, copper, aluminium, concrete and hard to clean materials without noise or vibration in a fraction of the time taken by conventional methods. The equipment is extremely simple and easy to operate, and the capital cost in comparison to drills etc. is negligible.
The addition of power steel rods in packed form to a lance pipe, provides a greater ratio of iron to oxygen, thus providing sufficient heat to melt ferrous and non-ferrous materials. The lance is ignited by applying heat to the lance end with an oxygen-acetylene equipment. The temperature reached in the center of the combustion zone is around 4000 °C, greater than the melting point of any substance of Earth! The heat generated form the iron/oxygen reaction is sufficient to melt concrete, steel or refractory, as the melting point of most materials varies between 1800-25000 °C.
Oxygen is continuously fed through the length of steel tube, usually ¼”, 3/8” or ½” NB, and the burning end of the lance is aimed at the spot on the material where it has to be cut. At the burning end, the oxygen combines with the iron to from a slag rich in iron
The slag produced is very fluid which enables cutting and boring to take place. The flow of slag is
assisted by the velocity of the gas and vapours expelled within it.The cutting is a manual process. Thus it depends a lot on personal skill. Proper training and safety gear is a must. Equipment Consists of :
Steel tube packed with special steel rods (Aluminum or Magnesium are often added to the packing to increase the heat output)
Contains a gas control valve, flame arrestor and holder. The lance fits into holder
Usually connected to three or more 250kPa to 800 kPa, 8 / 9 m capacity cylinders
The lance can easily be connected to the oxygen supply pipeline where available. For bigger jobs, liquid oxygen cryogenic flasks can also be used.
An A-grade gamut of Lance Holder can be availed from us within reasonable prices. These lances are manufactured using impeccable quality metals, that have high resistance to abrasion and corrosion. Our lances are developed by experienced professionals, whose efforts help in shaping accurate designs.
Oxygen is used in the manufacture of metals like Steel, Copper and Zinc. Chlorine is used in the manufacture of Alumina. These gases react with the undesirable impurities and form their respective oxide or chlorides. These oxides or chlorides then float to the surface of the molten metal and are removed.
To transfer these gases to the molten metal, a pipe is needed. This pipe is the Lancing Pipe and the process of injecting gases into molten metal is known as Oxygen Lancing.
Traditionally an ordinary Pipe has been used. The material of construction is Low Carbon Steel ( Mild Steel ) , Electrically Resistance Welded ( ERW ) in the shape of a pipe. Since the molten metal is Steel or Copper or Zinc, and the pipe is of Mild Steel, the pipe melts into the Molten Metal, at the end which is dipped into it . Besides because of the high temperature of the Molten Metal, the pipe also gets oxidized and melts faster into the Molten Metal. Hence the pipe gets consumed and has to be replaced.The rate of replacement decides the cost of production.
We supply Calorised Pipes which are given inner and outer surface calorising treatment under high temperature in which diffusion of non ferrous metals takes place into the surface of steel.
The calorised pipes offer characteristics such as :