A core plug is basically just a thin piece of metal that is found either in the shape of a cup or dish that is considered suitable for blocking off a hole or like a opening on the block head or cylinder head the of engine that was added during the process of manufacturing. Some common examples of such openings are the coolant castings that are found in the blocks of engines or the oil galleries that are drilled within the block head or cylinder head of the engines.
The heavy duty core plugs are also known as welch plugs, freeze plugs or even expansion plugs. Most of the heavy duty core plugs are used by fitting them to the automotive, marine and the industrial engines that are run on diesel or petroleum. A number of different elements are used for producing the heavy duty core plugs. These elements include mild and stainless steel, brass and also aluminium.
The companies working as the heavy duty core plug supplier Modinagar have mentioned that these plugs are usually made of mild steel and they are finished using the electroplating process on the metals zinc and nickel. This electroplated finish has a great advantage of being resistant to corrosion against different fluids and it is also resistant to the high temperatures after being fitted to the engines or the head of the cylinder.
Core plugs are removed from the coolants and oil galleries if the engine blocks or the cylinder blocks are rebuild for cleaning purposes. They are later replaced or refitted. The welch plugs are a considered to be a type of core plugs which are made mostly with a thin metal disc. These plugs are usually dome shaped and they are inserted into the casting hole at a time when the convex side is outward facing. The welch plugs were first invented and introduced during the 1900s.
A Company called Welch motor car company based in the United States of America or USA were originally responsible for designing these welch plugs. Previously when the welch plugs were not invented people used the pipe plugs for blocking or sealing the core holes. The heavy duty core plugs in Modinagar are mostly manufactured in a little oversized manner by just 0.25 mm to 0.40mm. This oversized part is also called the interference fit and it is mostly required for sealing or blocking the opening where the heavy duty core plug is going to be installed or fitted.
Most manufacturers advise their clients to keep their previously used or original heavy duty core plug with them for measuring it’s size when it must be replaced. Although the old heavy duty core plug may be not be a suitable instrument for measurement if it had already been rusted or some damage has been caused to it making unrecognizable. This is why most suppliers and manufactures prefer the use of a digital micrometer over a normal measuring tape. The digital micrometer is a device that is used for measuring the size of these heavy core duty plugs as it is known for providing with accurate results of measurement. Most companies have even put up some conversion and measurement charts on their official websites so that the clients can easily use them and convert the units from imperial to metric if they are facing problems in finding out the proper size that they need for their use and application. The imperial sized core plugs are used mostly by the vintage or the classic automotive vehicles and the metric core plugs are used mostly by the modern automotive vehicles that are commonly used.
Some features of the core plug as mentioned by the Modinagar heavy duty core plug supplier companies are:
• The HD and LLD virgin materials are used for making the heavy duty core plugs.
• The products are packed and supplied in bags with each bag containing up to twenty one pieces of heavy duty core plugs.
• The net weight of the product is 9.500kg.
• Some companies even supply free samples of their products to their customers . This is done so that if the customers after using the free plugs are satisfied then they are going to buy more of the product.
• The certifications that are required for selling or supplying this product are ISO 9001 the 2015 version and the MSME.
The suppliers and manufacturers of the heavy duty core plugs have claimed that their companies use the best quality materials and the latest technology in the market along with the experience of their esteemed experts to produce the plugs.
