Pahwa Metal Tech. Chakan, Pune, Maharashtra

In a four-stroke race engine, the valve seats play an important part in the mechanical reliability and heat management of the valves. In general, the valve seat will conduct much of the heat away from the valve head during the time the valve is shut. If we leave mechanical and dimensional considerations aside, a valve seat material with greater thermal conductivity will transfer heat from the valve to the cylinder head, and then to the cooling water circuit, more efficiently than one of lower thermal conductivity. The most common materials used for making valve seats for race engines are copper alloys. They have excellent thermal conductivity, good wear characteristics and reasonably high strength. Copper Beryllium Alloys that contain small additions of Beryllium are commonly chosen for race engines.

Selecting the right copper alloy for resistance welding equipment particularly for gun arms, Projection welding electrodes, Seam welding wheels and Spot welding electrodes and caps is dependent on large number of design criteria and most often it is a trade-off between strength and electrical conductivity. Copper Chromium and Copper Chromium Zirconium alloys have good thermal conductivity but tend to soften at lower temperatures thereby by significantly reducing the quality of weld and life of electrode. Copper Beryllium (RWMA Class 3 and 4) alloys are used high weld force or high weld currents are required. However these alloys are expensive for commercial applications and therefore are ususally substituted with less expensive materials. Automotive Industry faces major challenges as electrodes have to be continuous replaced adding to downtime, cost and loss in productivity.

Plunger Tips is a critical part of aluminium Die-casting process. Plunger tips are used to push molten zinc and aluminium through a polished steel sleeve into die cavities, to form intricate parts. Beryllium Copper Plunger Tips have been the standard of the Die Casting Industry for the past 30 years. Beryllium Copper Plunger Tips generally do not last much longer than 9,000 shots under the best conditions and with a relatively small diameter. Above all Copper Beryllium material itself is highly expensive and pose health concerns. CI and tool steels plungers have been used to overcome the disadvantages of cost of CuBe Plungers but lack performance. Steel Plungers are relatively inexpensive but wear out more frequently and have to be replaced regularly, thereby increasing downtime and poor productivity.

Non-sparking tools is mandatory to provide protection against fires and explosions in environments where there is a possibility of sparks igniting flammable solvents, vapours, liquids, dusts or residues. Conventionally Non-Sparking Hand Tools were available of the following two materials i.e Copper Beryllium and Aluminium Bronze. Copper Beryllium (Cu-Be) is an extremely hazardous alloy due to the toxicity associated with Beryllium. Use of Cu-Be hand tools or other parts, constantly exposes employees and contractors to a severe and often fatal lung disease caused by exposure to Beryllium. You read more about hazards of beryllium on our technology page.Many countries are thus severely curtailing use of Cu-Be or completely banning it. Due to the above reasons, some users have adopted Aluminium Bronze (Al-Br) as the preferred alternative for non-sparking tools. However, Al-Br is a very weak material having strength of about 60% of Cu-Be. These tools thus break very frequently leading to high consumption and risk of injury to the user.Copper Titanium Non-Sparking Hand Tools are certified and tested as per IS 4595-1969 Standards and are totally free from beryllium and have high strength characteristics.As a material manufacturer, we offer complete range of standard non sparking tools and also provide customized solutions from design to manufacturing of Non-Sparking Tools so that you don’t have to compromise on safety.

SofterLower strength copper alloys contact tips tend to wear out quickly leading to downtime and reduced productivity. Worn tips are typically become oval and can cause an erratic arc from the random electrical connection and physical movement of the wire inside the worn tip. Contact tips precisely made from a wear-resistant copper alloy can give superior welding performance. Copper Beryllium tips have high wear resistance but are expensive to use.

Beryllium copper plate and rod wrought products are utilized in the plastics processing industry for plastic injection moulds, blow moulds, cavity inserts, and associated production components such as manifolds and nozzles. Also, in moulds of metal die casting dies. The material is specified in these applications due to its combination of high strength and hardness coupled with excellent thermal conductivity (as compared to tool steel and aluminium).