Pro Installer December 2019 - Issue 81 - Page 37

DECEMBER 2019 | 37 Skills Read online at DHF LAUNCHES CSCS CARD PARTNER SCHEME Tamworth-based trade association, DHF (Door & Hardware Federation), has, this week, launched its CSCS-approved card partner scheme in collaboration with the Automatic Door Suppliers Association (ADSA). The DHF CSCS card provision is for those who work with industrial doors, domestic garage doors, automated gates & traffic barriers and metal or timber doors. “Whilst not a legislative require- will cause welding defects and result in a poor weld. 3. Keep electrodes dry; wet electrodes can result in porous, weak finished welds. 4. During set up, set the amperage on the welding machine to match what is required by the electrode being used. If stick welding for the first time, set the amperage exactly in the middle of the range suggested for the elec- trode. 5. If using DC machine, set the polarity according to the requirements of the electrode being used. Gas tungsten arc welding (GTAW), com- monly known as TIG (or tungsten inert gas) welding, is a versatile welding process for joining metal. Both AC and DC power sources can be used in TIG welding; which is chosen will depend on the type and thickness of the metal to be welded. A TIG torch is an electrode holder that supplies welding current to the tungsten electrode and an inert shield gas to the arc zone. A collet-like clamping device allows adjustment so that the right length of electrode extends beyond the shielding gas cup. TIG welding uses a non-consumable tungsten electrode and has an extreme- ly high melting point which means that TIG electrodes can heat other metals to their melting points without themselves melting. Argon and helium are the main shield- ing gases used in TIG welding. In some applications, however, a mixture of the two gases can prove advantageous. On occasion, hydrogen is mixed with argon or helium for special applications. it pays to take welding ‘ and fabrication seriously ’ TIG welding tips 1. A foot pedal allows the user to adjust the amperage of the machine without having to manually turn the amperage knob and is highly recommended. 2. Torch position is important in TIG welding. The ideal position is 90°. However, the weld pool will be blocked from view by the torch. Angle the torch 15° to see the weld pool while maintaining great results. 3. Some TIG welding requires the use of a filler metal in the form of a filler rod when there is insufficient metal pres- ent to complete a strong joint. 4. Torches may be air- or water-cooled. 5. GTAW is most commonly used to weld thin sections of stainless steel and non-ferrous metals such as aluminium, magnesium, and copper alloys. ment, CSCS cards are supported by the government and provide proof that individuals working on construction sites have the appropriate training and qualifications for the job that they are doing,” explains DHF’s Commercial Manager, Patricia Sowsbery-Stevens. “By ensuring that the workforce is appropriately qualified or experienced, the card plays a vital role in improving standards and safety on UK construc- tion sites. Indeed, the majority of principal contractors and major house builders require construction workers on their sites to hold a valid card.” As part of the scheme, and in addi- tion to any criteria set by CSCS such as a relevant NVQ for the Skilled Worker card, DHF is asking that anyone who is applying for a card has evidence of CPD (continued professional develop- ment). This will usually be in the form of a valid DHF training course certifi- cate. “Each card is specific to the require- ment,” continues Patricia. “In addition to the Blue Skilled Worker card, there are several other cards available, check the DHF website for further informa- tion.” The launch of the CSCS card partner scheme is a further ‘feather in the cap’ for the pro-active federation who, in July of this year, announced that it is the very first UK organisation to offer an official theory-based ABBE-qualifica- tion for three of the industries it serves, approved and regulated by Ofqual, the Government Office of Examination card plays ‘ a the vital role in improving standards and safety on UK constrction sites’ ’ Regulation. The move was described as ‘ground-breaking’. The launch of CSCS cards is further endorsement of DHF’s drive for safety and best practice. Gordon Jenkins, Director of Op- erations at CSCS comments: “CSCS is pleased to see the collaboration between DHF and ADSA in the issuing of cards for the Doors sector. This col- laboration demonstrates DHF’s commit- ment to meeting the requirements of the CLC and ensuring that construction site workers are appropriately quali- fied. In the process, we are all playing our part in improving standards and safety on UK construction sites. CSCS looks forward to a long and productive relationship between our three organi- sations.”