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Polyurethane Rotating Casting Machine without Mould Part 1

Polyurethane Rotating Casting Machine without Mould Part 1

Ⅰ. Product Classification : Polyurethane rotary casting (also called no mould casting), is a kind of new polyurethane elastomer casting process, which suitable for the process and shaping of all types of polyurethane rubber roller. Ⅱ. Manufacturing technique creativity, adaptability, safety and...

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Ⅰ. ProductClassification:

Polyurethane rotary casting (also called no mould casting), is a kind of new polyurethane elastomer casting process, which suitable for the process and shaping of all types of polyurethane rubber roller.


Ⅱ. Manufacturing technique creativity, adaptability, safety and advantages:

1. For TDI and MDI elastomer.

2. Demoulding is not required, which reduces labor intensity, avoids the possibility of contamination of the roll core and improves the production efficiency.

3. Can be solidified at room temperature, and the solidification cycle is short. It can reduce energy consumption, improve the production efficiency.

4. Multilayer, complex rubber rollers of different rubber performance can be produced.

5. Flexible production, strong motility and little requirement towards production sites.

6. Mixing various colors auxiliary materials catalyst, can optimize production phase of different raw material output, hardness, color and product quality, meanwhile keep high metering accuracy, prevent from waste.


Ⅲ. Features:

1. The mixing head uses the mechanical new seal; through the three-axis computer, the casting sets automatic rotation, movement and lift.

2. Different casting amounts and formulations can be stored for the convenience of use in next time.

3. The color and hardness of polymer can be changed from one component to multiple components, to simultaneously maintain the accuracy and quality of the cast product. Color can be added to multiple components according to customer requirements.

4. Independently control the temperature of all piping system and mixing system; the German high-precision flow meter monitors the casting amount and independently controls circulation pressure inside the tubes of each component.

5. The raw material tank adopts the hot air circulation of electric heating(patented technology), which makes heating faster, efficient, energy saving, safe and environmental. 

6. The device has function of automatic detection of pressure, temperature, flow, open and closed loop etc; it will automatically determine when there is abnormity, diagnose, give alarm and display abnormal factors in words.


Ⅳ. Application:

All kinds of rubber roller, high load solid core wheel, sieve plate, hydraulic sealing ring, photovoltaic guide pulley and other high wear- resistant material.


Ⅴ. Main parameter:

Item/Model

CPU30J-XZ

Total discharge amount(g/min)

1000-5000

Mixing ratio: A:B:C

100:12–65:6-23

Pouring head stirring speed(mm/min)

20-300

Rotary speed of rubber roller(r/min)

15-120

Single layer pouring thickness of rubber roller(mm/time)

1-15

Diameter range of pouring rubber roller(mm)

Φ100-2000mm

Length range of pouring rubber roller(mm)

100-6000

Linear velocity of rubber roller surface rotation(mm/s)

10-60

Total power(kw)

28


Remarks:

1. Pretreatment of raw material: RC-A raw material need 65-75℃ drying room and heating 48hours, when prepolymer fully fusion, then pour into casting machine container. RC-8 will be crystal in winter, so please heating in drying room.

2. Rubber roller core pretreatment: same as mould casting technology, gasoline, acetone degrease after surface sandblast. Must gelatinize, then start to cast after gumming is dry.

3. Curing condition: no need vulcanize, place 36hour in room temperature, then lathe work. After one week, it can be used.

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