Miasto DaZhou Changge Miasto Prowincja HeNan Chiny. +8615333853330 sales@casting-china.org

Sand Casting Service

Dom » Odlewanie piasku

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

Tworzenie wzorów

1. Tworzenie wzorów

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

It is usually made from wood, plastikowy, lub metalu.

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

2. Tworzenie pleśni

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

The mold is made in two halves:

  • Cope (top half) I 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. Tworzenie rdzenia (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 wlew I runner system.

  • The system includes bramy (to direct flow), risers (to compensate for shrinkage), I vents (to let gases escape).
  • Metals used: lane żelazo, aluminium, stal, brązowy, itp.
  • Care is taken to avoid turbulence, gas entrapment, and inclusions during pouring.
Chłodzenie i zestalanie

5. Chłodzenie i zestalanie

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.
Czyszczenie i wykończenie

7. Czyszczenie i wykończenie

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

  • The surface may be wyczyszczony by shot blasting, tumbling, or pickling.
  • Obróbka is performed as needed to achieve final tolerances.
  • Surface treatments or coatings (np., malarstwo, polerowanie) można zastosować.

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, odporność na korozję, waga, i koszt.

Ferrous Metals

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

Tworzywo Oceny Kluczowe właściwości Typowe zastosowania
Szare żeliwo ASTM A48, EN-GJL-200/300 Excellent castability, Tłumienie wibracji, siła ściskająca Bloki silnika, podstawy maszyn, obudowy
Żeliwo sferoidalne ASTM A536 (60-40-18), EN-GJS-400 Wytrzymałość, plastyczność, odporność na zmęczenie Wale korbowe, koła zębate, armatury rurowe, ciężkie maszyny
Stal węglowa AISI 1020, AISI 1045, AISI 1060 Wysoka wytrzymałość, opłacalne, weldable Części konstrukcyjne, wały, industrial tools
Stal stopowa AISI 4140, 4340, ASTM A387, EN 34CrNiMo6 Odporność na ciepło, Twardość, improved wear resistance Przekładnie, umiera, pressure parts, lotniczy
Stal nierdzewna AISI 304, 316, 410, 420, CF8, CF8M Doskonała odporność na korozję, hygienic, wysoka wytrzymałość Food-grade equipment, zawory, Części pompowe, marine use

Non-Ferrous Metals

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

Tworzywo Oceny Kluczowe właściwości Typowe zastosowania
Stopy aluminium A356, A319, 6061, LM6 Lekki, odporny na korozję, good conductivity, recykling Automobilowy, części lotnicze, electrical enclosures
Brązowy (Cu-Sn) C83600, C93200, Sae 660 Excellent wear/corrosion resistance Bushings, koła zębate, komponenty morskie
Mosiądz (Cu-Zn) C36000, C37700, CW614N Dobra obrabialność, attractive finish, odporny na korozję Plumbing fixtures, decorative hardware
Miedź C11000, C12200 Outstanding electrical and thermal conductivity Electrical connectors, terminale, bus bars
Zinc Alloys Zamak 3, Zamak 5, ZA-8 Niska temperatura topnienia, excellent detail and surface finish Complex small parts, die-cast components
Stopy magnezu AZ91D, AM60 Extremely lightweight, wysoki stosunek wytrzymałości do masy Lotnictwo, 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

Bloki silnika, głowice cylindrów, brake drums, obudowy przekładni, suspension knuckles, and railway wheels.

Industrial Machinery & Equipment

Obudowy pomp, korpusy zaworów, gearbox casings, compressor shells, and large machine bases.

Oil & Gas & Petrochemical

Pump and compressor internals, refinery equipment housings, piping tees, łokcie, i kołnierze.

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.

Wytwarzanie energii

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

Maszyny rolnicze

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

Art, Architecture & Decorative

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

Pole samochodowe

Pole samochodowe

Części odlewnicze samochodowe

Pole lotnicze

Pole lotnicze

Części odlewane do samolotów

Pole rozwoju ropy i gazu

Pole naftowe i gazowe

Akcesoria do sprzętu naftowego i gazowego

Pole wojskowe

Pole wojskowe

Części odlewnicze sprzętu wojskowego

Sand Casting Parts Gallery

TA technologia Strony

Odlew

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

PRACA

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.

Po zestaleniu, 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, brązowy, mosiądz, miedź, cynk, i magnez).

3. How accurate is sand casting?

Typical dimensional tolerances are around ± 0.5 mm za 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.

Bloga

Casting & Machining BRZUCH

Wiedza

Twoje odniesienie o jedno miejsce dla czystych i stopowych punktów topnienia metalu w ° C, °F & K - Prefect dla inżynierów, hobbystów, i każdy pracujący ze stopionymi metaliami.
Odkryj 10 Rodzaje wykończeń aluminiowych i dowiedz się, w jaki sposób każde wykończenie zwiększa odporność na korozję, Ochrona z noszenia, i urok wizualny. Od anodowania i powłoki proszkowej po elektropolera i drukowanie metalu.
Odkryj świat aluminium castingu stopu. Zrozum kluczowe procesy, takie jak odlewanie piasku, odlewanie ciśnieniowe, i casting inwestycyjny, ich aplikacje, Kontrola jakości, i jak wybrać najlepszą metodę dla swoich potrzeb produkcyjnych.