metalock metal stitching - the alternative to welding cast iron
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- Опубликовано: 3 авг 2016
- The metalock onsite cold repair process, metal stitching used for the successful repair of cracked or fractured castings. The process was developed in the 1930's, and continues to be used and improved by organisations worldwide. The key aspect of the repair process is that it does not involve heat, and the repair can often be achieved on the machine onsite, with little dismantling.
The application of heat for repairing metal, with welding, will introduce distortion and metallurgical changes - usually becoming brittle. In addition, heat can often not be applied in situ as the environment where the equipment is situated is often difficult to access, and contained.
The Metalock process can often be performed rapidly, the engineer needs only access to the damaged area. Other equipment can often remain in operation. Complete dismantling of the equipment to be repaired is usually not required.
The Metalock International Association was created in 1953 to develop and coordinate the various Metalock organisations, to ensure that the repair quality remains paramount, and to ensure that members of the association deliver the most effective repair possible. Go to the website for rmore information about Metalock www.metalockinternational.org
Thousands of repairs have been made on ships on the high seas, to furnaces, to engine blocks, to cast iron bridges... Members also undertake other engineering services that compliment the Metalock repair; onsite machining, leak sealing, welding, etc. 
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We can fix Will’s Fairbanks power hammer with this!
The repair is stronger than ever...Hardly the case these days
Good
Best metal to metal connection since the hot riveting of the Eiffel Tower.
Proper Engineering
My question is how did they break the big machine to begin with
The majority of the work that is dealt with through metal stitching comes from human error, in all its forms. For instance, with engines, oil starvation in one part, leads to seizure, which then leads to fantastic forces on the casing.
@@johnmortimer3209 i agree and my bet was already on the human error, was just truly interested in exactly where they went to get it like that. I have used such type of machinery similar and know it had to be catastrophic or maybe a earthquake knocked it over 🤷
This is cool
Problem is, they don't build them like they used to, and these machines are still being traded, repaired, and used in Manufacturing. Most were setup to run on factory shaft power and have been converted to AC motor operation, even installing safety electronics like light curtains and two hand switches.
Craftsmanship
How did they get the back of that keyhole so nicely square?
They use a jig or drill guide that is accurately in line and straight. Then, it is possible to use hand tools and be in uncomfortable positions, and still obtain a good result. When an operative drills out a block like that, they have got quite some experience doing the basic drilling and stitching for some time first and therefore they should be proficient in this. If there is still some variance in the drilling, this is not precision work, the 'gaps' are filled by the screws of studs that are then drilled in, as in the drilling, the material of the stud fills out to fill the threaded hole. Does that make sense and does it answer your question?
So in other words since the repair is done with high strength alloy steel, the repair is stronger than the original material ? Wow!
Hi Brad, the high strength alloy is indeed stronger in some circumstances, but dont forget we are dealing with cast iron which is brittle. Overall the repair returns a % of strength that is almost always less than 100% of the original, but cast iron brittleness being what it is, means that the repair still far exceeds the normal operating strength of the equipment.
Those days are well gone. Things are not made to be repaired any more.
Ha!
Oh give me a break - they still do this now.
ruclips.net/video/w4gx2C7giZ4/видео.html
ya im pretty sure industries look to repair multimillion dollar machinery before replacing it, these aren't iphones we're talking about....
@@mmscastrepair6532 WELL DONE MAN , GOOD WORDS! iF U DON`T HAVE ENOUGH INFORMATION, THE RIGHT THING TO DO IS SHUT THE MOUTH. I`VE SEEN YOUR WEB SITE ABOUT UR JOB. GOOD JOB MAN. IT`S AN AMAZING TECHNIQUE I DID NOT KNOW SINCE THEN. I USED TO HEAT THESE PARTS OF CASTING IRON WITH ORDINARY WELDIND METHODS. NOW I THINK I NEED MORE INFORMATION AND STUDY MORE AND MORE. CONGRATS, MAN! SEE YA !!!
In general the number of failures of cast iron equipment has decreased over the decades, However, there are still plenty of situations where Metalock is still actively called for. I t still keeps many national service organisations doing good business.
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