DISAMATIC - Citizendia

DISAMATIC is an automatic production line used for fast manufacturing of sand molds for pouring molten metal, which after solidification, cooling and removal from the mold becomes a part called casting. For the Detroit Red Wings scoring line see Production line (hockey A production line is a set of sequential operations established Casting is a manufacturing process by which a liquid material is (usually poured into a mold which

1 The invention
2 Prototype
3 Working principle
4 Advantages
5 Further developments
6 External links
7 See also

The invention

In 1957 Vagn Aage Jeppesen - professor at the Danish Technical University claimed a patent for a device producing flaskless molds of sand mixtures with vertical parting lines for casting metal parts. Year 1957 ( MCMLVII) was a Common year starting on Tuesday (link displays the 1957 Gregorian calendar) The Technical University of Denmark ( Danish: Danmarks Tekniske Universitet, DTU was founded in 1829 as the 'College of Advanced Technology' (Danish Den A patent is a set of Exclusive rights granted by a State to an inventor or his assignee for a fixed period of time in exchange for a disclosure of an A sand casting or a sand molded casting is a cast part produced by forming a mold from a sand mixture and pouring molten liquid metal into the cavity in In 1960 Danish company Dansk Industri Syndikat A/S (DISA) acquired the patent and started working on its implementation. Year 1960 ( MCMLX) was a Leap year starting on Friday (link will display full calendar of the Gregorian calendar. The Kingdom of Denmark ( ˈd̥ænmɑɡ̊ (archaic ˈd̥anmɑːɡ̊ commonly known as Denmark, is a country in the Scandinavian region of northern Europe Implementation is the realization of an application or execution of a Plan, idea Model, Design, Specification, standard, Algorithm

Prototype

In 1962 a half scale prototype of a sand molding machine with flaskless and vertically parted molds under the name of DISAMATIC was ready to be disclosed. Year 1962 ( MCMLXII) was a Common year starting on Monday (the link is to a full 1962 calendar of the Gregorian calendar. A prototype is an original type form or instance of something serving as a typical example basis or standard for other things of the same category During the GIFA foundry exhibition in 1962 in Düsseldorf, (today one of the largest foundry shows in the world), the scale model was demonstrated on DISA’s stand. A foundry is a Factory which produces Metal Castings from either Ferrous or non-ferrous alloys Düsseldorf (ˈdʏsəldɔɐf is the capital city of the German state of North Rhine-Westphalia. The Movement for Democracy in Liberia (MODEL was a rebel group in Liberia that became active in March 2003, launching attacks from Côte d'Ivoire. This resulted in sales of two first DISAMATICS to European foundries.

Working principle

DISAMATIC consists of a molding machine and mold transporting conveyor. A machine is any device that uses Energy to perform some activity A belt conveyor consists of two or more Pulleys with a continuous loop of material - the conveyor belt - that rotates about them It applies clay bonded sand mixtures, also called green molding sands due to its moisture content. In Chemistry, a mixture is a substance made by combining two or more different materials without a chemical reaction occurring (the objects do not bond together Green sand may refer to Molding sand used in Sand casting Greensand, a mineral containing Glauconite Such mixtures consist of silica sand, clay called bentonite and few other additives. The Chemical compound silicon dioxide, also known as silica or silox (from the Latin " Silex " is an Oxide Clay is a naturally occurring material composed primarily of fine-grained Minerals which show plasticity through a variable range of Water content, and Bentonite is an absorbent Aluminium phyllosilicate generally impure Clay consisting mostly of Montmorillonite. Their main component is relatively cheap silica (SiO₂) sand , one the most common compounds on the Earth. The molding sand mixture is blown by means of compressed air into a rectangular steel chamber, squeezed to a mold by two patterns fasted to the two opposed side plates of the chamber. Compressed air Squeeze are an English band that came to prominence in the United Kingdom during the New Wave period of the late 1970s and continued recording successfully A pattern, from the French patron, is a theme of recurring events or objects sometimes referred to as elements of a set After squeezing one of the chamber plates retracts and swings upwards and the opposite plates pushes the ready mold out of the chamber on a mold transporting conveyor. Here cores can be set automatically into the mold cavity while the next mould is about to be prepared. The above cycle repeats until a chain of such molds closed-up to each other has been established on the conveyor.

The molds can now be filled with molten metal and the poured molds will be moved forward on the cooling conveyor in the same pace as the fabrication of new moulds takes place. Melting is a process that results in the phase change of a substance from a Solid to a Liquid. At the end of the conveyor the solidified castings are separated from the molds and processed further, while the sand is directed to the sand preparation plant for reconditioning and reuse in the next cycles of the DISAMATIC molding process. For freezing as a method of food preservation see Frozen food. sEParation is an EP by Destroy Babylon, released on May 4th 2007 Plants are living Organisms belonging to the kingdom Plantae.

Advantages

The DISAMATIC sand molding process has several advantages comparing to other molding processes. It does not use flasks, which avoids a need of their transporting, storing and maintaining. The Flux Advanced Security Kernel ( FLASK) is an Operating system security architecture that provides flexible support for security policies DISAMATIC is very productive and fully automatic (only one monitoring machine operator is needed). Automation ( Ancient Greek: = self dictated) roboticization or industrial automation or Numerical control is the use of Control systems In Mathematics, an operator is a function which operates on (or modifies another function This reduces the labor consumption. Molding sand consumption can be minimized due to variable mold thickness that can be adjusted to the necessary minimum. The castings produced on the DISAMATIC lines are very accurate dimensionally since once the molds have been cored and closed there are no perpendicular forces affecting the mould string. In Geometry, two lines or planes (or a line and a plane are considered perpendicular (or orthogonal) to each other if they form congruent In Physics, a force is whatever can cause an object with Mass to Accelerate. There are very few wear parts and movable parts in the molding machine. In Materials science, wear is the erosion of material from a Solid Surface by the action of another substance This decreases spare parts consumption and increases efficiency of the molding line. For the above reasons the DISAMATIC process is particularly suitable for mass manufacturing of metal castings that are crucial components in the car and machine industry, civil engineering and many other fields.

Further developments

The first automatic DISAMATIC molding lines could produce up to 240 complete sand molds per hour. Today a modern DISA molding line can mold at the rate of 550 sand molds per hour (one complete mold for each 6. 5 seconds). Maximal mis-match of two half’s of the castings made on the DISA lines does not exceed 0,1 mm. The reliability (uptime) of the DISA lines exceeds 98%. Uptime is a measure of the time a Computer system has been "up" and running The range of DISAMATIC moulding lines covers mold sizes from 400 x 500 to 850 x 1200 milimetrs. A modern DISA line can be completed with automatic casting and sand cooling drums, robotized devices for extracting castings from the molds and automatic casting cleaning and shot blasting machines placed inline with the DISA line. The drum is a member of the percussion group technically classified as a Membranophone. An industrial robot is officially defined by ISO as an automatically controlled reprogrammable multipurpose manipulator programmable in three or more axes. Cleanliness is the absence of dirt including Dust, Stains bad smells and Garbage. Abrasive blasting is the operation of cleaning or preparing a surface by forcibly propelling a stream of Abrasive material against it In such automatic production lines there is no need of any human manual labor until the castings are completely finished and ready for dispatch.

External links

Persondata
NAME	Green sand
ALTERNATIVE NAMES	Green sand
SHORT DESCRIPTION	Automation, Foundry, Industrial Process, Casting, Molding, Car part
DATE OF BIRTH
PLACE OF BIRTH
DATE OF DEATH
PLACE OF DEATH

Green sand may refer to Molding sand used in Sand casting Greensand, a mineral containing Glauconite Molding sand, Foundry sand or Green sand is sand that when moistened or oiled tends to pack well and hold its shape A foundry is a Factory which produces Metal Castings from either Ferrous or non-ferrous alloys Casting is a manufacturing process by which a liquid material is (usually poured into a mold which A sand casting or a sand molded casting is a cast part produced by forming a mold from a sand mixture and pouring molten liquid metal into the cavity in In Foundry work the terms Cope and Drag refer respectively to the upper and lower parts of a two-part Casting flask, used in Sand casting. Foundry Sand testing Sand in the foundry industry is the most commonly used least understood substance A Chill is an object used in making metal castings Molten metal when poured into a sand mold will cool at a certain rate depending upon the thickness of the casting Centrifugal casting or rotocasting is a Casting technique which has application across a wide range of industrial and artistic applications It is A flask is a type of Tooling used to contain a Mold in Metal casting. A Hand mould is a two-part mould used for Casting small metal objects that could be operated by hand Die casting is the process of forcing molten Metal under high pressure into mold cavities (which are machined into dies Lost foam casting (LFC is a type of Investment casting process that uses Foam patterns as the investment Lost-wax casting, sometimes called by the French name of cire perdue, is the process by which a bronze is cast from an artist's sculpture in industrial uses the modern process In the process of Casting, a pattern is a replica of the object to be cast used to prepare the cavity into which molten material will be poured during the casting process In permanent mold casting, metal is used as the mold material instead of sand.

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