DaZhou-Stadt Changge-Stadt HeNan-Provinz China. +8615333853330 sales@casting-china.org

Sand Casting Service

Heim » Sandguss

Sand Casting Service

Sand Casting is a traditional metal casting process that involves creating a mold from compacted sand, then pouring molten metal into the cavity to form a desired shape.

Once the metal solidifies, the sand mold is broken apart to remove the final casting.

DEZE Technology provides a variety of casting services, and users can choose the appropriate casting process according to their needs.

If you don’t know which casting method is more suitable for your product, please contact us and our professional engineers will help you.

What is Sand Casting

DEZE-Sand-Casting-Service

Detailed Steps of Sand Casting

Mustererstellung

1. Mustererstellung

A pattern is a replica of the final part, slightly oversized to account for metal shrinkage during cooling.

It is usually made from wood, Plastik, oder Metall.

  • Zweck: To create the mold cavity in the sand.
  • Typen: Split pattern (for complex parts), match-plate pattern, or cope-and-drag patterns.
  • Shrinkage allowance: Typically 1–3% depending on the metal.
Schimmelherstellung

2. Schimmelherstellung

The pattern is placed inside a molding box (Flasche), Und sand mixed with a binder (like clay or resin) is packed around it.

The mold is made in two halves:

  • Cope (top half) Und Drag (bottom half).
  • The pattern is removed, leaving a cavity in the shape of the part.
  • If required, cores are inserted into the mold to form internal features or hollow sections.
Core-Making

3. Kernherstellung (If Applicable)

Cores are sand shapes inserted into the mold to form internal cavities in the casting.

  • Made from core sand, which is more durable and heat-resistant.
  • They must be accurately placed and often supported with chaplets (metal spacers).
  • Cores are removed after casting, usually broken out and discarded.
Metal Melting and Pouring

4. Metal Melting and Pouring

Molten metal is prepared in a furnace and poured into the mold through a Anguss Und runner system.

  • The system includes Tore (to direct flow), risers (to compensate for shrinkage), Und vents (to let gases escape).
  • Metals used: Gusseisen, Aluminium, Stahl, Bronze, usw.
  • Care is taken to avoid turbulence, gas entrapment, and inclusions during pouring.
Abkühlung und Erstarrung

5. Abkühlung und Erstarrung

After pouring, the metal is allowed to cool and solidify inside the mold.

  • Cooling rates affect grain structure and mechanical properties.
  • Proper riser design ensures that metal shrinkage is compensated to avoid internal voids.
  • The solidification time depends on part thickness and metal type.
Shakeout and Mold Removal

6. Shakeout and Mold Removal

Once the metal has cooled, the sand mold is broken apart to retrieve the solid casting.

  • This step is called Shakeout.
  • The sand can often be recycled after cooling and screening.
  • The casting is rough at this point and may have residual sand or oxide layers.
Reinigung und Endbearbeitung

7. Reinigung und Endbearbeitung

Excess material such as sprues, risers, and flash are removed by cutting or grinding.

  • The surface may be gereinigt by shot blasting, tumbling, or pickling.
  • Bearbeitung is performed as needed to achieve final tolerances.
  • Surface treatments or coatings (z.B., Malerei, Polieren) kann angewendet werden.

What materials are used in sand casting?

Sand casting supports a wide range of ferrous and non-ferrous metals. The choice depends on the desired mechanical properties, Korrosionsbeständigkeit, Gewicht, und Kosten.

Ferrous Metals

These metals contain iron and are commonly used for high-strength and structural applications.

Material Noten Schlüsseleigenschaften Typische Anwendungen
Graues Gusseisen ASTM A48, EN-GJL-200/300 Hervorragende Gießbarkeit, Vibrationsdämpfung, Druckfestigkeit Motorblöcke, Maschinenbasen, Gehäuse
Sphäroguss ASTM A536 (60-40-18), EN-GJS-400 Zähigkeit, Duktilität, Ermüdungsbeständigkeit Kurbelwellen, Getriebe, Rohrverbindungsstücke, schwere Maschinen
Kohlenstoffstahl AISI 1020, AISI 1045, AISI 1060 Hohe Festigkeit, kostengünstig, weldable Strukturteile, Wellen, industrial tools
Legierter Stahl AISI 4140, 4340, ASTM A387, EN 34CrNiMo6 Hitzebeständigkeit, Härtbarkeit, improved wear resistance Getriebe, stirbt, pressure parts, Luft- und Raumfahrt
Edelstahl AISI 304, 316, 410, 420, CF8, CF8M Ausgezeichnete Korrosionsbeständigkeit, hygienic, hohe Festigkeit Food-grade equipment, Ventile, Pumpenteile, marine use

Non-Ferrous Metals

These are metals without significant iron content, typically used for corrosion resistance and weight savings.

Material Noten Schlüsseleigenschaften Typische Anwendungen
Aluminiumlegierungen A356, A319, 6061, LM6 Leicht, korrosionsbeständig, good conductivity, recycelbar Automobil, Teile für die Luft- und Raumfahrt, electrical enclosures
Bronze (Cu-Sn) C83600, C93200, Sae 660 Excellent wear/corrosion resistance Bushings, Getriebe, Marinekomponenten
Messing (Cu-Zn) C36000, C37700, CW614N Gute Bearbeitbarkeit, attractive finish, korrosionsbeständig Plumbing fixtures, decorative hardware
Kupfer C11000, C12200 Outstanding electrical and thermal conductivity Electrical connectors, Terminals, bus bars
Zinc Alloys Zamak 3, Zamak 5, ZA-8 Niedriger Schmelzpunkt, excellent detail and surface finish Complex small parts, die-cast components
Magnesiumlegierungen AZ91D, AM60 Extremely lightweight, hohes Verhältnis von Festigkeit zu Gewicht Luft- und Raumfahrt, electronics housings, automotive panels

Advantages of DEZE Sand Casting

Advantages of DEZE Sand Casting
  • 1. Cost-Effective for Low to Medium Production
  • 2. Wide Range of Material Compatibility
  • 3. No Size Limitations
  • 4. Complex Geometries Possible
  • 5. Short Lead Time
  • 6. Recyclable Materials
  • 7. Suitable for a Variety of Surface Finishes

Applications of Sand Casting

Sand casting’s versatility and low tooling cost make it ideal for a broad spectrum of applications—from heavy industrial components to artistic pieces:

Automotive & Transportation

Motorblöcke, Zylinderköpfe, brake drums, Getriebegehäuse, suspension knuckles, and railway wheels.

Industrial Machinery & Equipment

Pumpengehäuse, Ventilkörper, gearbox casings, compressor shells, and large machine bases.

Oil & Gas & Petrochemical

Pump and compressor internals, refinery equipment housings, piping tees, Ellbogen, und Flansche.

Marine & Shipbuilding

Propeller hubs, rudder stocks, sea-water valve bodies, deck fittings (cleats, chocks), and anchor components.

Construction & Heavy Equipment

Excavator buckets, bulldozer blades, crane sheaves, and structural castings for mining gear.

Stromerzeugung

Turbine casings, steam-generator housings, pump volutes, and hydropower turbine parts.

Landmaschinen

Tractor housings, plowshares, combine-harvester components, and irrigation pump assemblies.

Art, Architecture & Decorative

Statues, relief panels, fountains, ornamental railings, and façade elements.

Automobilbereich

Automobilbereich

Gussteile für Automobile

Luft- und Raumfahrtbereich

Luft- und Raumfahrtbereich

Gussteile für Flugzeuge

Öl- und Gasentwicklungsfeld

Öl- und Gasfeld

Zubehör für Öl- und Gasanlagen

Militärischer Bereich

Militärischer Bereich

Gussteile für militärische Ausrüstung

Sand Casting Parts Gallery

DIESE Technologie Teile

Casting

Sand Casting Parts

Sand Casting Parts

304 Stainless Steel Auto Parts

Sand Casting Parts

Sand Casting Parts

316 Stainless Steel Flanges

Sand Casting Parts

Sand Casting Parts

Auto parts

Sand Casting Parts

Sand Casting Parts

Hardware parts

Sand Casting Parts

Sand Casting Parts

Auto parts

Sand Casting Parts

Sand Casting Parts

CF8M Stainless Steel Pump parts

Sand Casting Parts

Sand Casting Parts

2205 Duplex Stainless Steel Machinery parts

Sand Casting Parts

Sand Casting Parts

Machinery parts

Frequently Asked Questions about Sand Casting

SERVICE

1. What is sand casting?

Sand casting is a metal-forming process where a pattern creates a cavity in a sand-binder mixture, into which molten metal is poured.

Nach der Verfestigung, the sand mold is broken away to reveal the finished part.

2. Which metals can be used in sand casting?

Nearly any metal can be sand-cast, including ferrous alloys (gray and ductile iron, carbon and alloy steels) and non-ferrous alloys (Aluminium, Bronze, Messing, Kupfer, Zink, und Magnesium).

3. How accurate is sand casting?

Typical dimensional tolerances are around ± 0.5 mm per 100 mm of dimension, with surface finishes of Ra 6–12 µm.

4. What are the main advantages of sand casting?

  • Low tooling cost and rapid mold changes
  • Ability to produce very large or complex shapes
  • Broad material compatibility
  • Recyclable mold materials

5. What are the limitations of sand casting?

  • Relatively rough surface finish and looser tolerances
  • Higher scrap rate from gating and risers
  • Slower cycle times due to mold preparation and shakeout

6. How do I minimize casting defects in sand casting?

  • Design proper gating and risering for directional solidification
  • Use degassing and filtration to remove inclusions
  • Control mold compaction and venting to avoid gas porosity

7. When should I choose sand casting over other methods?

Select sand casting for low-to-medium volumes, large or complex parts, rapid prototyping, or when low tooling cost is a priority—even if final parts require some machining.

Blog

Casting & Machining BAUCH

Kenntnisse

Ihre One -Stop -Referenz für reine und legierte Metallschmelzpunkte in ° C, °F & K - für Ingenieure perfekt, Hobbyisten, und jeder, der mit geschmolzenen Metallen arbeitet.
Entdecken Sie die 10 Arten von Aluminium -Oberflächen und lernen, wie jedes Finish die Korrosionsbeständigkeit verbessert, Schutz tragen, und visuelle Anziehungskraft. Von Anodisierung und Pulverbeschichtung bis hin zu Elektropolieren und Metalltransferdruck.
Erkunden Sie die Welt des Aluminiumlegierungs -Castings. Verstehen Sie Schlüsselprozesse wie Sandguss, Druckguss, und Investitionskaste, ihre Anwendungen, Qualitätskontrolle, und wie Sie die beste Methode für Ihre Fertigungsbedürfnisse auswählen.