 | |
| Type | Public |
|---|---|
| Industry | Iron |
| Founded | 1909 |
| Defunct | 1967 |
| Fate | Acquired |
| Successor | ESAB |
| Headquarters | Rainham, Essex, England |
| Products | Ferroalloys |
Murex Limited was a leading British provider of services to metallurgists, smelters and refiners, and welders. It was an original constituent of the FT 30 index of leading stocks on the London Stock Exchange.
Murex was founded in 1909 as an iron founder and a ferroalloy manufacturer. The company moved to Rainham, Essex in 1917. [1]
In the 1930s, Murex made large quantities of electrodes at their factory in Waltham Cross, [2] and many ships including HMS Ark Royal and Queen Elizabeth 2 have been welded using Murex equipment. [2]
The business was sustained by a high level of activity during World War II, but after the war ended, its profits reduced substantially. [3]
It fell out of the FT 30 index in 1967 when its share price declined, and it was replaced by Beechams. [4]
Welding equipment made by Murex occasionally comes up for sale. [5]
Murex was acquired by the BOC Group in 1967. [6] In the UK, the rights to the Murex brand were sold to ESAB. [7]
Murex Limited was officially dissolved on 11 June 2013. [8]
British Steel was a major British steel producer. It originated from the nationalised British Steel Corporation (BSC), formed in 1967, which was privatised as a public limited company, British Steel plc, in 1988. It was once a constituent of the FTSE 100 Index. The company merged with Koninklijke Hoogovens to form Corus Group in 1999.
Welding is a fabrication process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion. Welding is distinct from lower temperature techniques such as brazing and soldering, which do not melt the base metal.
Submerged arc welding (SAW) is a common arc welding process. The first SAW patent was taken out in 1935. The process requires a continuously fed consumable solid or tubular electrode. The molten weld and the arc zone are protected from atmospheric contamination by being "submerged" under a blanket of granular fusible flux consisting of lime, silica, manganese oxide, calcium fluoride, and other compounds. When molten, the flux becomes conductive, and provides a current path between the electrode and the work. This thick layer of flux completely covers the molten metal thus preventing spatter and sparks as well as suppressing the intense ultraviolet radiation and fumes that are a part of the shielded metal arc welding (SMAW) process.
Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals, when cool, result in a binding of the metals. It is a type of welding that uses a welding power supply to create an electric arc between a metal stick ("electrode") and the base material to melt the metals at the point of contact. Arc welders can use either direct (DC) or alternating (AC) current, and consumable or non-consumable electrodes.
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Telectronics Pty Ltd was an Australian company best known for its role in developing the pacemaker. It was located in Lane Cove, Sydney. In 1988 the business was acquired by Pacific Dunlop. However, legal claims resulting from the sale of faulty pacemaker electrode leads inherited by the company in acquisition of Cordis Corporation of Miami led to eventual sale of the assets of the company and Pacific Dunlop restructuring itself into Ansell.
Electrogas welding (EGW) is a continuous vertical position arc welding process developed in 1961, in which an arc is struck between a consumable electrode and the workpiece. A shielding gas is sometimes used, but pressure is not applied. A major difference between EGW and its cousin electroslag welding is that the arc in EGW is not extinguished, instead remains struck throughout the welding process. It is used to make square-groove welds for butt and t-joints, especially in the shipbuilding industry and in the construction of storage tanks.
P. R. Mallory and Co Inc was a US producer of dry cell batteries, electronic components including electrolytic capacitors, and audible warning devices ("Sonalert"). It also was the parent firm of Mallory Batteries Ltd., an Irish producer of Ever Ready batteries. British Ever Ready had a large stake in it by World War II and had a close relationship with Mallory by the late 1960s. In the US, "Eveready" batteries were a trademark of Union Carbide, which had no relationship with P. R. Mallory.
Hyperbaric welding is the process of welding at elevated pressures, normally underwater. Hyperbaric welding can either take place wet in the water itself or dry inside a specially constructed positive pressure enclosure and hence a dry environment. It is predominantly referred to as "hyperbaric welding" when used in a dry environment, and "underwater welding" when in a wet environment. The applications of hyperbaric welding are diverse—it is often used to repair ships, offshore oil platforms, and pipelines. Steel is the most common material welded.
Björn Stigson was until 2012 president of the World Business Council for Sustainable Development (WBCSD), a CEO-led, global association of some 200 companies dealing exclusively with business and sustainable development.
China Molybdenum Company Limited is the largest molybdenum producer in Mainland China and top 5 in the world listed in the Hong Kong Stock Exchange and Shanghai Stock Exchange. It is one of the largest tungsten producers in the world, and is the second largest Cobalt and Niobium Producer and the leading Copper producer worldwide. The headquarters of the company is at Luanchuan County, Luoyang City, Henan Province. The chairman is Yuan Honglin (袁宏林), elected in June 2020.
International Tea Co. Stores was a leading chain of grocers based in London. It was an original constituent of the FT 30 index of leading companies listed on the London Stock Exchange.
Cranswick plc is a leading UK food producer and supplier of premium, fresh and added-value food products. The company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.
Kjellberg Finsterwalde is a group of German companies in the metal and electrical industry. The group consists of the three manufacturing companies, Kjellberg Finsterwalde Plasma und Maschinen GmbH, Kjellberg Finsterwalde Schweißtechnik und Verschleißschutzsysteme GmbH and Kjellberg Finsterwalde Elektroden und Zusatzwerkstoffe GmbH, and the Kjellberg Finsterwalde Dienstleistungsgesellschaft mbH, which fulfils group-wide functions. Sole shareholder of the group is the Kjellberg Foundation, with its registered seat in the Hessian city of Gießen. The group manufactures products for thermal metal working.
Ador Welding Limited is an industrial manufacturing company headquartered in Mumbai India. The flagship company of the Ador Group, Ador Welding produces a variety of welding products, industry applications, and technology services, including welding consumables and welding and cutting equipment. It has over 30% market share in the organized welding market and is considered one of the major players in the Indian welding industry. Ador PEB is the company's project engineering division. PEB is based in Pune and has provided services to the Indian Government's Bharat Nirman Program in the field of combustion and thermal engineering technologies.
Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to fuse. Along with the wire electrode, a shielding gas feeds through the welding gun, which shields the process from atmospheric contamination.
Enovis is an American corporation manufacturing welding, air and gas handling equipment, and medical devices headquartered in Annapolis Junction, Maryland. Indexed on the NYSE, the company was originally founded as a spinoff from the American conglomerate Danaher Corporation. In 2011, Colfax acquired British Charter International PLC, which in turn owned Swedish ESAB. Both companies have since been wholly owned by Colfax. Further Colfax also acquired Allweiler. The company made its largest acquisition ever in November 2018, buying medical device company DJO Global for $3.15 billion.
