The key to flourishing Pin Brazing as with original Brazing techniques relies upon many key factors and there are some main factors, but when it comes to Pin Brazing there are just five areas on which I primarily focus when providing training classes or presentations. These are Power Supply, covering preparing for your connection, covering preparing for your Earth Device, having the precise Adjustment Setup and finally Operator Proficiency. The above factors can often be overlooked individually, often creating inadequate results and expensive delays so it is foremost that both operators and companies ensure that they have either received or made provision for training and certification by a qualified, experienced Instructor.
Not wanting to make this record into an 'instruction manual' it is my intention to focus on in more detail why some of the above factors are imperative considerations in both Pin Brazing goods found and development and the observation that must be given when taking the responsibility to found and pioneer these innovative processes.
Arc Welding Equipment Power Tools
Connection Design.
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Customer Reviews
*** Product Information and Prices Stored: Jun 12, 2012 10:55:56
Brazed joints using Silver based Filler metals should always have a capillary gap into which the molten filler metal can flow. Joint compel will vary with the joint gap and the degree of overlap in the middle of connection type and parent metal, joint clearances of 0.03 to 0.08 mm (0.0012 to 0.0031 in) are recommended for the best capillary performance and joint strength.During the Pin Brazing process, brazing material is drawn into the joint which is caused by the attraction in the middle of the molecules of the brazing material and the molecules of the metal covering to be joined. This will only work if: The covering of the metal is clean, the clearance in the middle of the metal surfaces is precise and the metal at the joint area is hot sufficient to allow the Pin Brazing material to evenly flow. connection methods such as Crimp Terminals should be precision artificial to ensure optimum capillary gap for joint compel and integrity, whilst also allowing excess heat created while initiation of the Pin Brazing Arc to flow freely away from the Substrate material in order reducing and unnecessary damage or increased Heat Affected Zone (Haz).
Brazing Pins and their respective Alloys should be selected on their suitability for a singular application. observation should be given to the substrate design, the parent metal, the brazing process and the ergonomics of the operation. The use of Cadmium free, high Silver, free flowing filler Alloys with low melting ranges are significant in the development of Brazing Pins, which aid in the shielding of the Parent material while the Arc process and allow for an increased flow maximizing in the available covering area, which in turn allows for a more great electrical and mechanical connection.
In the found of Brazing Pins the selection of flux is as foremost as the selection of filler metal. The working range of the flux must be compatible with the brazing temperature, must have suitable life at climatic characteristic and should be suitable for both the heating recipe (in the case of Pin Brazing, Arc climatic characteristic could be in excess of 2000 Degrees Celsius) and the parent metals and become active below the melting point of the brazing alloy. It must stay active right through the brazing cycle removing any oxides formed on the parent metal. Observations should be made if the flux residues appear blackened and glassy as the flux has probably been exhausted while heating. This could be the result of contaminated flux (from very old or incorrectly stored Brazing Pins) or more likely the components have been overheated, possibly due to an incorrect adjustment setting on the Brazing Gun or an un-charged Battery Pack.
Pre-cleaning.
To promote good bonding the connection substrate should be free from grease and any covering oxide prior to brazing. Grease and oil are best removed using a degreasing solvent. Prior to this Pin Brazing Ancillaries can be used which will often include covering preparing tool such as Die Grinders and Angle Grinders fitted with Carbide Burrs, Mounted Points or polisher Flap Discs. These mechanical covering preparing devices are intended to be utilized sparingly in order to not cause disruption to the substrate thickness or generate uneven pits or troughs which may interfere with Capillary performance or Arc length. covering oxide can also be removed with a medium grade polisher cloth. observation should also to be given to Consumable quality, as with Substrate material, components which have been exposed to moisture or grease can be the cause of defective brazes results. Care should be taken at all times to ensure that Consumables remain sealed in their original containers until required for use and should be inspected for covering oxidization or grease prior to being used.
Battery Status.
Most accepted Pin Brazing Systems control using a 36-42volt Battery Pack or Welding Generator set up to mirror the characteristics of the Battery pack. True observation and testing has gone in to find batteries that are suitable for the greatest operational demands of the Pin Brazing Process and the equally greatest environments in which the process is utilised. Therefore only pre-approved batteries must be used, these battery types or their details will only be obtainable from your Pin Brazing supplier or tool constructor and it is foremost to note that different Pin Brazing tool Manufacturers do utilise different Battery types, which are attuned for use with only their respective tools and consumables. As a user batteries must be cared for in accordance with your user manual, and even under heavy usage could last for many years.
Electrobraze Pin Brazing tool and Consumables have been industrialized through palpate for use in greatest environments and remote locations worldwide through broad field and trouble-shooting palpate in the Oil, Gas, Rail and Utilities industries. What's more all pieces of tool have been industrialized for In-field operator convenience being both lightweight and practical. Using electromechanical technology for a safer, more practical, rugged and trustworthy system. Which, ensures that operators working in the field can be safe and have full control over their tool and maintenance. goods facts and supplementary reading on Pin Brazing and the Pin Brazing Process can be found at http://www.electrobraze.com/index.php?p=1_5_About.
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