Zl305 Aluminum Gravity Sand Investment Castings Eb9124

一、Machine tool castings

Lost foam casting (also known as full mold casting) is a new casting method that combines paraffin wax or foam models similar to the size and shape of the casting into model clusters, applies refractory coating and dries them, buries them in dry quartz sand for vibration molding, pours them under negative pressure, vaporizes the model, occupies the position of the model with liquid metal, and forms castings after solidification and cooling

Advantages:

1. Defects such as pores and sand holes are as low as 0.1%

2. Control the margin between 2mm and 5mm

3. Chemical composition stability testing meets the standards.

二、Sand casting aluminum process

1. Introduction

Sand casting is a common metal casting process used to produce various types of castings. Among them, the sand casting aluminum process refers to the process of using sand molds to manufacture aluminum alloy castings. This process has the advantages of low cost, high production efficiency, and wide applicability, so it is widely used in many industries.

2. Process flow

The process flow of sand casting aluminum mainly includes four main steps: mold preparation, pouring, cooling, and demolding.

2.1 Mold preparation

Mold preparation is the first step of the entire process, with the aim of producing corresponding sand molds based on the shape and size of the required products. Typically, mold preparation involves the following steps:

1. Design: Design the corresponding mold structure and dimensions based on the product drawings or samples.

2. Mold making: According to the design drawings, place the core box and bottom box in the mold box, and place the core (if necessary) in the core box.

3. Plastic treatment: Mix a specific proportion of plastic with water, add it to the mold, and compact it vigorously to form a sand mold.

4. Drying: Place the moist sand mold in a well ventilated area to allow it to dry thoroughly.

5. Sorting: Trim and organize the dry sand mold to ensure its surface is smooth and meets the requirements.

2.2 Pouring

Pouring is the process of pouring liquid aluminum alloy metal into a prepared mold. The main steps are as follows:

6. Preparation of liquid aluminum alloy: Select appropriate aluminum alloy materials according to the requirements of the required product, and melt and adjust them to form a composite

Suitable temperature.

7. Preparation of pouring equipment: Pour the prepared liquid aluminum alloy into the pouring equipment, such as a pouring tank or chilled iron water tank.

8. Pouring: Move the pouring equipment above the mold and control the flow rate and flow rate to evenly fill the entire mold with liquid aluminum alloy

Cavity.

9. Cooling: Wait for sufficient time for the liquid aluminum alloy to cool and solidify in the mold.

2.3 Cooling

Cooling refers to allowing the castings in the mold to naturally cool to achieve a certain hardness after pouring is completed. The main steps are as follows:

10. Cooling time: Determine the appropriate cooling time based on the type and size of aluminum alloy to ensure complete solidification of the casting.

11. Environmental control: During the cooling process, some measures can be taken to accelerate the cooling rate, such as increasing ventilation or using cooling

Equipment.

12.Temperature monitoring: Regularly measure the temperature of castings to ensure that they achieve the required hardness.

2.4 Demolding

Demolding refers to the process of removing cooled and solidified castings from the mold. The main steps are as follows:

13. Disassembling the mold: Open the mold box and carefully separate the core box and bottom box.

14. Release agent treatment: Apply a layer of release agent to the surface of the mold cavity to prevent adhesion between the casting and the sand mold.

15. Remove the casting: Carefully remove the casting from the sand mold and clean and trim it.

三. Technological advantages

The sand casting aluminum process has the following advantages:

16. Cost effectiveness: Compared to other metal casting processes, the cost of sand casting is lower. It does not require expensive equipment and materials, and has high production efficiency.

17. Complex shapes: The sand casting aluminum process can manufacture various complex shapes of aluminum alloy castings, such as curves, holes, and concave convex surfaces.

18. Material selection: Flip sand casting is suitable for various types of aluminum alloy materials, and different alloy compositions can be selected according to product requirements.

19. Production efficiency: The sand casting process has high production efficiency and can quickly produce large quantities of aluminum alloy castings.

20. Environmental sustainability: The sand molds used in the sand casting process can be reused, reducing the generation of waste and having good environmental friendliness.

四. Application field

Due to its advantages and wide adaptability, the sand casting aluminum process has been widely used in many industries. Here are some common areas:

21. Automotive industry: Automotive engine components, chassis components, etc.

22. Aerospace: Aircraft engine components, aviation instruments, etc.

23. Electronic devices: computer casing, phone casing, etc.

24. Construction machinery: components of construction machinery such as excavators and loaders.

25. Energy industry: nuclear power plant components, wind power generation equipment, etc.

Packing and Delivery

Company Overview

CNC Machine

 Stamping workshop

 Automatic equipment for package

VC Process Equipment

 Equipment for Quality Control

FAQ