Huan Fiber Molding Machinery Co., Ltd.

SHM paper sprue pipe forming machine is a kind of equipment dedicated to the production of paper sprue pipe in the foundry industry, which is mainly used to replace traditional metal or ceramic sprue pipe, which has the advantages of environmental protection, lightweight, and low cost. Here's a closer look at the device:

First, the principle of the equipment
SHM (Hunan ShuangHuan Fiber Molding Machinery Co., Ltd.) paper sprue pipe forming machine works through the following process:

Raw material processing: The prepared slurry is fed into the equipment.

Molding process:

Wet forming: The slurry is pressurized in a mold and dehydrated and dried to form a tubular structure.

Curing and drying: hot pressing by hot press machine to ensure the hardness and temperature resistance of the pipe.

Cutting and trimming: automatic cutting according to the required length to complete the finished product.

Second, the core composition
Feeding system: the manufacturer adjusts the slurry according to the ratio, stirs evenly, and has the appropriate concentration.

Forming mold: formed by vacuum suction filtration.

Drying module: properly dried or dried to enter the hot press

Adhesive spraying: used for interlayer bonding (e.g. environmentally friendly water-based adhesives).

Automatic control: PLC or IPC control parameters (pressure, temperature, speed, etc.).

Third, the field of application
Foundry industry: gating systems for lost foam casting, V-method casting, sand casting.

Environmental protection advantages: After pouring, it is discarded with the sand mold, which can be naturally degraded and reduce pollution.

Alternative materials: replace ceramic pipes, cast iron pipes, reduce production costs and transportation weight.

Fourth, equipment advantages
Low cost: The price of raw materials is low, and the energy consumption of the equipment is lower than that of ceramic sintering.

Lightweight: The weight of the finished product is only 1/5 of that of metal pipes, which is easy to handle and install.

Customization: Runner pipes with different diameters (50-300mm), lengths and wall thicknesses can be produced.

Environmental protection: no harmful gas emissions, waste can be recycled or biodegraded.

Fifth, technical points
High temperature resistance: through a special impregnation process, the high temperature resistance of paper tubes (up to more than 1000°C) is improved.

Strength optimization: Multi-layer structure design or the addition of reinforcing fibers (such as glass fibers) to improve compressive strength.

Production efficiency: automatic production line, suitable for large-scale casting needs.

Sixth, the market and suppliers
Main manufacturers: domestic and foreign foundry equipment enterprises (such as German Lampey, Japan Xindong, Chinese local brands).

Purchase suggestion:

Selection of molding technology according to the needs of the casting process (wet vacuum filtration)

Focus on equipment compatibility (material type, pipe diameter range).

Inspect after-sales support and consumables (adhesives, molds) supply.

7. Potential problems
Humidity sensitive: moisture-proof during storage to avoid moisture absorption affecting performance.

Process adaptation: It needs to be matched with the existing process of the foundry (e.g. installation method, positioning accuracy).

summary
SHM paper sprue pipe forming machine is a key equipment for the green transformation of the foundry industry, reducing production costs through efficient and environmentally friendly processes. When purchasing, it is necessary to conduct technical evaluation based on specific casting needs (such as material temperature resistance, pipe diameter specifications), and give priority to suppliers who provide process support. For the specific definition of SHM, it is recommended to consult the vendor further for technical details.