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| REGULAR LINKS Sort by: Hits | Alphabetical Bay Area solar panel installer The sun is a near-infinite source of energy and a key component of achieving energy independence in the United States. By increasing our capacity to generate electricity from the sun, we also insulate ourselves from price fluctuations in global energy market. According to The Solar Foundation, the solar industry added jobs at a rate nearly 12 times faster than the overall economy in 2015, representing 1.2% of all jobs in the country. This growth is expected to continue due to the fact solar-related jobs are skill centric and cannot be outsourced. Solar industry is a significant contributor to the US economy. http://maverickgreenenergy.com/ | Milestones Building & Design Fabric Covered Buildings Compost & waste management with less odor, Milestones fabric buildings provide covered waste storage, optimum decomposition & no runoff to wetlands. Milestones fabric covered buildings for waste recycling, material recovery, recycle & reuse operations, corrosion resistant buildings, control odor, halt run-off. https://mbdbuildings.com/ | Solar Panels - Hybrid Inverters US We have worked for many electrical companies, as an apprentice, lead foreman and supervisor for a variety of different projects including simple residential electrical installations to very complex control systems including SCADA, PLC and relay based systems. We specialize in helping you put together entire systems for your solar projects, both small and large.We welcome your calls and questions. Thank you for being part of our growing business.
Joe Omweg – Founder
Global Solar Supply
Ventura, CA Global Solar Supply ;
1082 Front Street Suite E ;
Ventura, CA ;
93001 ;
Phone (+1) 805.218.1151 ;
Email: info@globalsolarsupply.com ;
Hours of Operation ;
Monday:10-6 PM ;
Tuesday:10-6 PM ;
Wednesday:10-6 PM ;
Thursday:10-6 PM ;
Friday:10-6 PM ;
Saturday:10-6 PM ;
Sunday Closed ; https://globalsolarsupply.com/ | Welding Equipment Welding Supplies Direct & Associate company TWS Direct Ltd is an online distributor of a wide range of welding supplies, welding equipment and welding machines. We supply Plasma Cutters, MIG, TIG, ARC Welding Machines and support consumables to the UK, Ireland and Europe. The new portable 230/400v 200amps MIG and MMA welder range from Oxford, using Mitsubishi PWM chopper technology and copper wound transformer this range of machines gives infinite & precise electronic control to its output. Chopper based welding machines have been in the market for a very few years but only on the larger and industrial machines. https://www.migwelders.ie/ | https://www.weldingsuppliesdirect.co.uk/welding-equipment/spot-welding.html Spot welding is one of the oldest welding processes. It is used in a wide range of industries but notably for the assembly of sheet steel vehicle bodies. This is a type of resistance welding where the spot welds are made at regular intervals on overlapping sheets of metal. Spot welding is primarily used for joining parts that are normally up to 3 mm in thickness. Thickness of the parts to be welded should be equal or the ratio of thickness should be less than 3:1. The strength of the joint depends on the number and size of the welds. Spot-weld diameters range from 3 mm to 12.5 mm.
How spot welding works
Spot welding is one form of resistance welding, which is a method of welding two or more metal sheets together without using any filler material by applying pressure and heat to the area to be welded. The process is used for joining sheet materials and uses shaped copper alloy electrodes to apply pressure and convey the electrical current through the workpieces. In all forms of resistance welding, the parts are locally heated. The material between the electrodes yields and is squeezed together. It then melts, destroying the interface between the parts. The current is switched off and the "nugget" of molten materials solidifies forming the joint.
To create heat, copper electrodes pass an electric current through the workpieces. The heat generated depends on the electrical resistance and thermal conductivity of the metal, and the time that the current is applied. The heat generated is expressed by the equation: E=I2*R*t
where E is the heat energy, I is the current, R is the electrical resistance and t is the time that the current is applied.
Copper is used for electrodes because it has a low resistance and high thermal conductivity compared to most metals. This ensures that the heat is generated in the workpieces instead of the electrodes.
Materials suitable for spot welding
Steel has a higher electrical resistivity and lower thermal conductivity than the copper electrodes, making welding relatively easy. Low carbon steel is most suitable for spot welding. Higher carbon content or alloy steel tend to form hard welds that are brittle and could crack. Aluminium has an electrical resistivity and thermal conductivity that is closer to that of copper. However, aluminium's melting point is much lower than that of copper, making welding possible. Higher levels of current must be used for welding aluminium because of its low resistivity.
Galvanized steel (i.e. steel coated with zinc to prevent corrosion) requires a different welding approach than uncoated steel. The zinc coating must first be melted off before the steel is joined. Zinc has a low melting point, so a pulse of current before welding will accomplish this. During the weld, the zinc can combine with the steel and lower its resistivity. Therefore, higher levels of current are required to weld galvanized steel. https://www.weldingsuppliesdirect.co.uk/welding-equipment/spot-welding.html | https://www.stainessafetyservices.co.uk/ Today we were in Tunbridge Wells at the Royal Victoria Shopping Centre performing fire door inspections We had recently performed fire door inspections here previously and had given the management company a snagging list prior to certifying the fire doors as meeting regulations.
Royal Victoria Shopping Centre
Royal Victoria saw this as a great time to perform all their fire safety and fire door inspections whilst the current lock down is still in operation. As a centre it is great to see that Royal Victoria take their fire safety responsibilities serious.
Availability
We as a company are available to perform fire door inspections U.K wide and have some house hold names as our current clients. With the new Fire Safety Bill due to enter law at the end of 2020 it is now the ideal time to rectify any issues your fire doors may have!! https://www.stainessafetyservices.co.uk/ | |
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