Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1141559A
Inventor
Denis Howard Woodward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stewarts and Lloyds Ltd
Original Assignee
Stewarts and Lloyds Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stewarts and Lloyds LtdfiledCriticalStewarts and Lloyds Ltd
Priority to GB1141559ApriorityCriticalpatent/GB875409A/en
Publication of GB875409ApublicationCriticalpatent/GB875409A/en
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K9/00—Arc welding or cutting
B23K9/02—Seam welding; Backing means; Inserts
B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Physics & Mathematics
(AREA)
Plasma & Fusion
(AREA)
Furnace Housings, Linings, Walls, And Ceilings
(AREA)
Abstract
A weld backing ring consisting of a refractory powder, e.g., sand, magnesia or alumina, bonded by a resin, e.g., phenol or urea aldehyde is made by heating at 200 DEG -220 DEG C. for about half a minute on a pattern plate tipping away uncured refractory to leave a partly cured ring in the mould, and completing the curing by heating the mould at about 220 DEG C. for 1 1/2 to 2 minutes. Specification 805,679 is referred to.
GB1141559A1959-04-031959-04-03Improvements in and relating to weld backing members
ExpiredGB875409A
(en)
Procedure for improving the characteristics of centrifugated or centrifuged polyester or centrifuged polyester plates or another centrifugated resin, by addition of other synthetic resins by colada (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture by centrifugal force of tiles and flat plates for both surfaces of hardened materials (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of parts of acrractions for vehicles based on artificial resisnes (Machine-translation by Google Translate, not legally binding)
Manufacturing procedure of a composite molding body that has, at least, two parts for precision foundry. (Machine-translation by Google Translate, not legally binding)