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JSC RIWord (Russian Innovation Word) company is offering you cooperation in the development and production of articles and component parts of machinery for your enterprise.

JSC RIWord specializes in the production of  articles made of aluminium, brass and zinc alloys by high pressure casting with the use fully automatic foundry complex with computer control of process variables.

The method of high pressure casting allows to produce articles of high precision, complex configuration, articles that require minimum mechanical processing.

What are the distinguishing features of our production?

- Since we have a unique technology of detailed mathematical modelling of foundry processes, we can ensure full technological control of pressing speeds and forces in all processes.

Computer control of manufacturing processes ensure the conformity of real processes to reference processes, thus, we can model the quality of castings and model the whole foundry process, i.e.we have a quality management system of a really new level.

The machines and equipment base that the firm has also corresponds in full measure to the meaning of the word "innovation" - a component of our company's name. RIWord firm has high pressure casting machines with unique properties - for instance, there is a three-phase modernized pressing unit with two separate circuits. Two-circuit pressing mechanism with a gas multiplier drive and adjusting proportional hydroapparatuses made by Parker-Hannifin located on the drain line of the unit allow to reduce considerably the spoilage of the castings as to porosity (which is characteristic of machines of other design and which results from taking the air from the compression box, hydroblow at the end of filling the mould and instable maintenance of process variables set).

 

The modernized pressing unit ensures the following parameters:  

1.      First slow stage speed: 0.1 : 0.15 m/sec (closing of the filling opening).

2.      First fast stage speed: 0.15 : 0.35 m/sec (collection of the melt in the pressing chamber with constant acceleration).

3.      The speed of the second phase is programmed in the course of the whole of the phase, including in the decelerating mode. The maximum speed mounts to 10 m/sec. In any range the variation from the speed set does not exceed + 0.01 m/sec.

4.      At the stage of compression of the metal in the mould, pressure in the pressing cylinder increases in 10 to 15 milliseconds. The multiplication pressure is programmed up to the value set and is maintained automatically. The multiplier can be engaged with both advance and delay with respect to the stop of the press-piston.

 

The following factors influence the increase of the density of the casting:

  1. Uniformly accelerated motion of the press-piston at the 1st stage which eliminates the forming of the metal wave and ensures the advance outlet of the air and decrease of the quantity of air and gas inclusions.
  2. Fast (10 to 15 milliseconds) increase of pressure at the final stage up to the value set, due to a separate circuit of the multiplier drive and absence of opposite pressure in the rod end of its cylinder. An independent unit of accumulators and the adjustment of the pressing force with the use of a special mobile accumulator rule out the dependence of the time needed to reach the prepressing pressure on the speed of the 2nd stage and on the value of the opposite pressure in the rod end of the multiplier.
  3. Shockless pressing without peak loads at the end of the piston stroke possible due to gas multiplier drive (instead of traditional hydraulic drive) and considerable reduction of     the inertia of the prepressing mechanism. The liquidation of the hydroblow is also furthered by the absence of peak oscillations of the pressure that are caused by the throttling of the flux from the common accumulator (which is characteristic of single-circuit units) and during the discharge from the rod end of the multiplier where opposite pressure is maintained.
  4. Stability of the maintenance of optimum technological modes due to the adjustment of the pressing speed at the discharge from the rod end of the cylinder, and due to a separate circuit with a gas multiplier drive.
  5. Possibility of increase of the pressing speed according to the parabolic law, which ensures a considerable improvement of the density of the casts.

 

One of the most important means to ensure the stability of performance parameters of the pressing unit is the control system. The main component of the control system is the pressing quality control system that ensures graphic and numerical registration of pressing parameters and displays in the screen the piston speed curves and piston path curves and pressure in the rod end of the pressing cylinder. It is possible to keep information in the form of tables and in the graphic form for 10 million castings in order to categorize them and for further analysis and printout.

High technical level of the equipment, wide range of technological capacities of the pressing unit and the control system, the safety of the elemental base of the hydraulic apparatuses and electronic apparatuses allow to use these machines for founding articles which require high responsibility.

The weight of the castings produced by high pressure casting is up to 6.5 kg. The maximum size: 700 x 700 x 500 mm, the precision of the castings conforms to class 2 to 4.

RIWord engage in development and production of press molds and tools for pressure casting, performs all the types of mechanical processing.

 

EQUIPMENT

 

1.      Melting resistance furnace and direct current furnace.

2.      Pressure casting complex TST 400. Auxiliary equipment for TST 400 (control boards, distributing furnace, greaser container, thermostating system).

3.      Pressure casting complex Italpresse - Vikers X-25 Duac. Auxiliary equipment for Italpresse X-25 (control boards, distributing furnace, greaser container, thermostating system, chipping press PA 25).

4.      Pressure casting complex Italpresse IP 260. Auxiliary equipment for Italpresse IP 260 (control boards, distributing furnace, greaser container, thermostating system, chipping press PA 25).

5.      Pressure casting complex TST 160. Auxiliary equipment for TST 160 (control boards, distributing furnace, greaser container, thermostating system).

6.      Low pressure casting unit.

7.      Chipping press PTR 25E for pressure casting machines TST 160 and TST 400.

8.      Ultrasound equipment for the cleaning of press molds.

9.      Tumbling unit Rosler TS-800/2000.

10.  Tumbling unit Rosler R 780 EC.

11.  Communicating drier Rosler R 200.2 BT.

12.  Turning centre TRAUB TNC 65.

13.  Universal processing centre Zero 2.

 

 

Measuring laboratories:

-         Control and measurement laboratory ACCURA 10 (Karl Zeiss).

-         Spectral laboratory for chemical analysis of elements of the alloy FOUNDRY - MASTER.

-         Gas analysis laboratory ELTRA.

-         Metallographic laboratory LOMO.

-         Sector of preparation of metallographic sections (grinding machine, polishing machine; polishing desk, etching desk with exhaustion unit, cabinet for chemicals).

 

Software:

-         Magmasoft

-         UniGraphics

 

 

 

We have a flexible, conscientious approach to the needs of our customers, we aim at fulfilling all possible requests and requirements of our customers, which constitutes a base for a successful and fruitful joint work.

 

 

Non-ferrous metal casting

We are producer of different kinds of metal casting - both ferrous and non-ferrous, and you can find with us various casting method, but we would like to start with High Pressure Die Casting, as most efficient and specific for us.

The high pressure die casting process provides a high quality affordable solution for repeatable metal products.  Our die cast parts are used for many industries including pumps and valves, automotive, furniture accessories, business and office stands and displayers, etc.  

.

For more information about our equipment go to the page: http://www.riword.com1.ru/eng/products/equipment.htm

Simplified assembly - Die castings provide integral fastening elements, such as bosses and studs. Holes can be cored and made to tap drill sizes, or external threads can be cast. 

Specification of cast product:
Weight  -  up to 6,5 kgs;
Dimensions   -  700 x 700 x 500 mm;
Accuracy  -  high.

Other services:

  • Aluminium casting under low pressure;
  • Sand casting of aluminium alloys;
  • Sanding;
  • Investment casting - steel, brass, brash.
  • Steel casting - from high-temperature, stainless steel, by methods of sand casting with use of automated molding line.
  • San casting - iron, hand molding.
  • Cast in a metal mold  -  aluminium, brass, bronze.

  •   Non-ferrous metals casting
  •   Ferrous metals casting
  •   Cold stamping

    		•

    Оснастка металлическая для литья в землю
    Mould for sand casting

    .
    Automated molding line

    We make aluminium, bras, zinc alloy, steel and iron casting.


    Specifications of castings, which could be made by the foundry of JSC 'RIWord' 

    Grade of alloy

    Type of cast method

    Weight of casting,
    Kgs

    Min, Max thins of wall, mm

    Dimension, mm

    Accuracy
    GOST 26-645-85

    Aluminium casting
    Brass casting. Zn alloys casting/

    Alloys on the basis of Al-Si-Cu-Mg

    High pressure die casting

    <  3,2 Kgs

    3-12 mm

    500х500 mm

    2-5

    LS59, LS 63, other

    High pressure die casting

    <  3,2 Kgs

    3

    500х500

    2-5

    Zinc alloys

    High pressure die casting

    <  3,2 Kgs

    3

    500х500

    2-5

    Отливки и детали из алюминия, полученные литьем под давлением

    Отливки и детали из алюминия, полученные литьем под давлением

    Отливки и детали из алюминия, полученные литьем под давлением

    Отливки и детали из алюминия, полученные литьем под давлением

    Aluminium casting, made under high pressure
    Заготовки для ключей, Литье латуни под давлением

     
    Brass casting under pressure

    BENEFITS OF HIGH PRESSURE DIE CASTING
    High-speed production - Die casting provides complex forms within closer tolerances than many other mass production processes, i.e. other casting methods. Thus, little or no machining is required and thousands of identical castings can be produced before additional tooling is required.
    Shape accuracy and stability - Die casting makes details that are long-lasting and stable in sizes, while maintaining close tolerances. They are also heat resistant.
    Strength and weight - Die cast parts are stronger than plastic injection moldings having the same dimensions. Thin wall castings are stronger and lighter than those possible with other casting methods, die castings do not consist of separate parts welded or fastened together, the strength is that of the alloy rather than the joining process allowing die casts parts to replace welded sheet metal assemblies with a one piece part.
    Texture of metal - density and to a great extent even casting porosity. Because high pressure die casting fills a mold in a consistent manner from a computer controlled machine, process variation is stable part to part, area's of porosity can be better managed in a good die cast tool to help make a good casting consistently.


     

    Steel casting

    Grade of alloy

    Type of cast method

    Weight of casting,
    Kgs

    Min, Max thins of wall, mm

    Dimention, mm

    Accuracy
    GOST 26-645-85

    Constructional steel

    Sand casting

    < 500

    < 20

    < 500

    5-11

    Alloyed constructional steel

    Investment casting

    < 500

    < 20

    < 500

    3-11

    Constructional unalloyed.
    Heat resisting constructional analloyed.

    Shaped molding

    < 1000

    5-100

    < 800

    7-11

    Iron casting

    Alloyed iron

    Sand moulds

     

    High strength gray  iron

    Sand moulds

     



    Cold stamping
    Russian equipment:
    Two presses with capacity 100 Tons -  K2130S.
    Two presses with capacity 16 Tons   - K12122.
    For small parts is press KS8.


    Детали, полученные методом холодной штамповки
    Parts, produced by cold stamping

    Детали, полученные методом холодной штамповки
    Parts produced by method of cold stamping


    Output  - 2-5 thousand units. Per day, 150-200 thousands units. monthly.
    Materials: steel sheet with   thickness less than  4 mm,  aluminium sheet with thickness less than 5-6 mm.
    Depending to the thickness of sheet , sizes of parts are:
    Sheet  1 mm -  dimensions are 200х200 mm,
    Sheet   2 mm - dimensions are 100х100 mm

    General stamped parts are: shim, back clips, brackets, H-corners, etc.
    PROCESS CIRCLES :
    1. blanking - platen die cutter, outline  stamping
    2. countersink (platen holes)
    3. tapping
    5. bending
    6. polishing
    Various finishing techniques - Die cast parts can be easily plated or finished with a minimum of surface preparation. Covering with powder coating (as well as oxydation,  galvanizing, chroming).
    Each stage needs its production tooling.
    Cast of tooling depends on complexity of the production.

    Recommended volume of  order - more than 5 thousand pieces per month.

    tel.: 007 (095) 225 44 14; e-mail: riword@mail.ru

      contact us:

      tel.: 007 (495) 225 44 14; 928 80 89  -  Moscow,  Russia

      e-mail: riword@mail.ru

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