An aluminium alloy die casting system provides a die casting machine which has a gate for melted aluminium alloys passage, sets a flow rate of melted aluminium alloy in range of 5m/sec to 15m/sec and press injects melted alloy in cavity of die. By this system it is possible to get a weldable casting having no air. An aluminium auto part manufactured by above mentioned process is weldable and also dense in structure. The result is auto parts formed of die-cast products are produced on a large scale cost effectively.
Aluminium and aluminium alloys casting problems: Aluminium castings have played significant role in development of aluminium industry since its inception in late 19th century. The first aluminium products were castings such as utensils and decorative parts which exploited the novelty and utilization of new discovery. Those early parts quickly expanded to meet the requirements of a wide range of engineering specifications.
Alloys development and analyzation of physical and mechanical features gave basis for product development through the decades which followed. Casting systems were processed to increase capabilities of foundries in new commercial and technical uses. The system of melted metal processing, solidification, and property development has been advanced to assist foundry man with means of cost effective and trustable production of components which regularly meet specific needs.
Nowadays aluminium alloy castings are manufactured in hundreds of ways by all commercial casting systems including green sand, dry sand, composite mould, plaster mould, investment casting permanent mould, gravity casting, low-pressure casting and pressure die casting.
Material constraints which previously limited the design engineers alloy choice once a casting process was selected are continuously being blurred by advancement in foundry techniques. Similarly process selection is also less restricted these days. Like the many alloys previously thought to be unusable in permanent moulds because of their casting features are in production by that very process.
Melting and metal treatment: Aluminium and aluminium alloys may be melted in various ways. Coreless and channel induction furnaces, crucible and open-hearth reverberatory furnaces fired by natural gas or fuel oil and electric resistance and electric radiation furnaces are all in routine use. The nature of furnace charge is as different and important as the choice of metal casting operations. The furnace charge may differ from pre-alloyed ingot of high quality to charge made up of low quality scrap. Even under best melting and melt holding situation melted aluminium is at risk to these types of degradation. a) With time at temperature, adsorption of hydrogen results in increased hydrogen content. b) With time at temperature, oxidation of melt occurs. c) Transient elements featured by low vapor pressure and high reactivity are reduced.
Turbulence or agitation of melt and increased holding temperature, significantly increase the rate of hydrogen solution oxidation and transient element loss. The mechanical properties of aluminium alloys depend on casting soundness which is highly influenced by hydrogen porosity and entrapped non metallic inclusions. Aluminium casting and alloys and products manufactured by them are things of the future due to their cost effectiveness and lightweight.
CL TECH supply a variety of strain and suspension clamps in aluminum casting parts and ductile or malleable iron to meet almost all distribution and transmission application.
High strength, heat-treated, A356 aluminium die casting alloy is used for clamp bodies & keepers. Production of most T&D; aluminum castings uses permanent molding process by heavy steel molds. Surfaces of the molds used are highly finished and the casting produced are distinguished by their fine, satin-smooth surface texture.
sOur hardware are cast in malleable or ductile iron, grade 604512. This metal possesses a long heritage of characteristics which have proved to be the most valuable in power line construction. The material has high ductility, excellent strength and consistency. The ductile or malleable iron can be bent, stretched, and severely distorted before failure of the metal occurs.
he ductile or malleable iron can be bent, stretched, and severely distorted before failure of the metal occurs.
| Bolted Dead End Clamps | Clevis Thimble |
| Parallel Groove Clamps | Strateline Clamps |
| Strain Clamps | Suspension Clamps |
| Socket Eyes | Socket Y-Clevises |
| Clevis Eyes | Twineyenuts |
| Oval Eyenuts | Straight Thimbleyelets |
| Thimbleyenuts | Angle Thimbleyelets |
| Straight Eyelets |
Miscellaneous Ductile or malleable Iron die Castings made to Customers’ drawings.
Per our “state of the art” full in-house CNC automatic machine & machinery center, we have been supplying the diversified machine parts for Specific Manufacturing Equipment, Machinery Rebuilding & Repairing Services & are known as a leader in production of custom precision machine parts since our establishment. Our facility is modern & well equipped & we take a great pride in quality workmanship, punctual delivery & customer satisfactions. We offer a full range of CNC machining and can solve your problems with expert machine tool services, rebuilding & special design solutions. It allows us not only to manufacture most of the custom machine parts under one roof, but also offer you a substantial savings on production and increase your capability by supplying you quality machine parts requirements.
Upset Forged Steel Fasteners
A major part of T&D;’s hardware are forged from high strength steel of no welded joints. This high-tensile and yield strength without any special heat treatment. It also has excellent ductility and toughness even under low temperature. Extensive testing and inspection of all component parts is carried on throughout the entire production process to assure all specifications are met or surpassed.
| Anchor Shackles | Ball Clevises |
| Ball Eyes | Ball Hooks |
| Ball Y Clevises | Chain Links |
| Chain Shackles | Twisted Shackles |
| Figure 8 Links |
Protective Coating
- Ductile or Malleable Iron and Steel Hardware are finished by a heavy coating of hot dip galvanizing to ASTM A-153 or BS-729.
- Nuts are dipped in oxide-resistant grease. This material provides additional protection to assure clean threads, and acts as a lubricant to get a good reading of torque when tightening the nut.
- Mechanical Zinc Deposited, Electroplating, Artificial Polishing upon request.
Standards
The products of CL TECH. are made in conformance with the latest applicable specifications of the following standards publishing organizations:
| AISI | American Iron and Steel Institute |
| ANSI | American National Standards Institute |
| ASTM | American Society for Testing Material |
| BS | British Standards Institution |
| CSA | Canadian Standards Association |
| DIN | Deutsche Industrie Normen |
| IEEE | The Institute of Electrical and Electronics Engineers, Inc. |
| ISO | International Organization for Standards |
| JIS | Japanese Industrial Standards |
| NEMA | National Electrical Manufacturers Association |
| REA | Rural Electrification Administration |
Packaging
CL TECH’s products are packaged in durable cartons and palletized. To easy handling, standard packages are kept under 50 lbs. Several number of cartons are palletized and kept weight under 2,500 lbs. Each carton is clearly labeled with product catalog number, description, quantity and weight. Your special packaging requirements should be indicated when request for quotation is made and when placing orders.Matal Parts
All metal pressed parts of any shapes in steel, stainless die casting or non-ferrous metals made by CL’s Hardware for electric utility and other industries demonstrated a high degree of reliability under exceptional conditions. All stampings are made of high grade materials to required specifications. Our metal stampings are created through the use of progressive dies, modular tooling design, high speed presses and, most importantly, quality assurance.