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Sand Casting Service

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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

Паттерн Макинг

1. Паттерн Макинг

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

It is usually made from wood, пластичне, или метал.

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

2. Израда калупа

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

The mold is made in two halves:

  • Cope (top half) и 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. Цоре Макинг (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 спруе и runner system.

  • The system includes капија (to direct flow), risers (to compensate for shrinkage), и vents (to let gases escape).
  • Metals used: ливеног гвожђа, алуминијум, челика, бронза, итд.
  • Care is taken to avoid turbulence, gas entrapment, and inclusions during pouring.
Хлађење и учвршћивање

5. Хлађење и учвршћивање

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 утајајући.
  • 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.
Чишћење и дорада

7. Чишћење и дорада

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

  • The surface may be очишћен by shot blasting, tumbling, or pickling.
  • Машинска обрада is performed as needed to achieve final tolerances.
  • Surface treatments or coatings (нпр., сликање, полирање) може се применити.

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, отпорност на корозију, тежина, и трошак.

Ferrous Metals

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

Материјал Оцене Кључна својства Типичне апликације
Сива лијевана гвожђа АСТМ А48, EN-GJL-200/300 Одлична способност ливења, пригушивање вибрација, Снага притиска Блокови мотора, машинске базе, кућишта
дуктилно гвожђе ASTM A536 (60-40-18), EN-GJS-400 Жилавост, дуктилност, отпорност на умор Цранксхафттс, зупчаници, цевне арматуре, тешке машинерије
угљенични челик АИСИ 1020, АИСИ 1045, АИСИ 1060 Висока чврстоћа, исплативо, weldable Structural parts, осовине, industrial tools
легирани челик АИСИ 4140, 4340, ASTM A387, EN 34CrNiMo6 Отпорност на топлоту, Очвршљивост, improved wear resistance Зупчаници, умире, pressure parts, ваздухопловство
нерђајући челик АИСИ 304, 316, 410, 420, ЦФ8, ЦФ8М Одлична отпорност на корозију, hygienic, висока чврстоћа Food-grade equipment, вентили, Делови пумпе, marine use

Non-Ferrous Metals

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

Материјал Оцене Кључна својства Типичне апликације
Алуминијумске легуре А356, A319, 6061, LM6 Лагана, отпорни на корозију, good conductivity, који се може рециклирати Аутомотиве, ваздухопловних делова, electrical enclosures
Бронза (Cu-Sn) Ц83600, C93200, Сае 660 Excellent wear/corrosion resistance Bushings, зупчаници, поморске компоненте
Месинг (Cu-Zn) Ц36000, Ц37700, CW614N Добра обрадивост, attractive finish, отпорни на корозију Plumbing fixtures, decorative hardware
Бакар C11000, C12200 Outstanding electrical and thermal conductivity Electrical connectors, терминали, bus bars
Zinc Alloys Zamak 3, Zamak 5, ZA-8 Ниска тачка топљења, excellent detail and surface finish Complex small parts, die-cast components
Легуре магнезијума AZ91D, AM60 Extremely lightweight, висок однос снаге и тежине Ваздухопловство, 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

Блокови мотора, главе цилиндара, brake drums, кућишта преноса, suspension knuckles, and railway wheels.

Industrial Machinery & Equipment

Кућишта пумпи, тела вентила, gearbox casings, compressor shells, and large machine bases.

Oil & Gas & Petrochemical

Pump and compressor internals, refinery equipment housings, piping tees, лакат, и прирубнице.

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.

Повер Генератион

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

Пољопривредне машине

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

Art, Architecture & Decorative

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

Аутомобилско поље

Аутомобилско поље

Делови за ливење аутомобила

Ваздухопловство

Ваздухопловство

Делови за ливење авиона

Поље за развој нафте и гаса

Поље нафте и гаса

Прибор опреме за нафту и гас

Војни терен

Војни терен

Делови за ливење војне опреме

Sand Casting Parts Gallery

ОВА Технологија Делови

Цастинг

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

СЕРВИС

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.

После учвршћивања, 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 (алуминијум, бронза, месинг, бакар, цинк, и магнезијум).

3. How accurate is sand casting?

Typical dimensional tolerances are around ± 0.5 мм пер 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.

Блог

Casting & Machining БЕЛЛИ

Знања

Ваша референца за чисте и легиране металне тачке топљења на ° Ц, °Ф & К-савршено за инжењере, хобисти, и свако ко ради са растопљеним металима.
Откријте то 10 Врсте алуминијума завршава и сазнају како сваки циљ појачава отпорност на корозију, заштита од ношења, и визуелна жалба. Од анодизирања и прашкастих премаза до електрополираног и штампаног преноса метала.
Истражите свет ливења алуминијумског легура. Схватите кључне процесе попут ливења песка, ливење под притиском, и улагање у инвестиција, њихове апликације, Контрола квалитета, и како одабрати најбољу методу за ваше производне потребе.