There are several technical methods for ceramic sintering:
(1) Normal pressure sintering: also known as pressureless sintering. It belongs to the process of free sintering of the green body under atmospheric pressure. The material begins to sinter without external force, and the temperature generally reaches the melting point of the material of 0.5-0.8. A suitable heating system can ensure that the product reduces cracking and structural defects and improves the yield.
(2) Hot pressing sintering and hot isostatic pressing: Hot pressing sintering refers to applying a certain pressure (at 10 to 40 MPa) during the firing process to promote accelerated flow, rearrangement and densification of the material.
(3) Reaction sintering: This is a method of sintering a material by reacting a gas phase or a liquid phase with a matrix material.
In addition to the reaction sintering of silicon carbide and silicon nitride, a reaction-sintering aluminum oxide method has recently appeared, and Al2O3 and Al2O3-Al composite materials can be prepared by Al powder oxidation reaction, and the material properties are good.
(4) Liquid phase sintering: Many oxide ceramics use low melting point auxiliaries to promote material sintering. The addition of additives generally does not affect the properties of the material or instead has a good effect on a certain function.
(5) Microwave sintering method: a method in which direct heating is performed by microwave energy for sintering. At present, there is a microwave sintering furnace with a volume of 1 cubic meter and a firing temperature of up to 1650oC. If a controlled atmosphere graphite auxiliary furnace is used, the temperature can be as high as 2000oC or more.
(6) Arc plasma sintering method: The heating method is different from the hot pressing method. When a stress is applied, a pulse power source is applied to the product, and the material is toughened and densified.
(7) Self-propagating sintering method: It is made of precision ceramic material by rapid chemical exothermic reaction of the material itself. More than 200 compounds such as carbides, nitrides, oxides, intermetallic compounds and composites can be synthesized by this method.
(8) Vapor deposition method: divided into physical vapor phase method and chemical vapor phase method. The most important methods in physical methods are sputtering and evaporation deposition. In the sputtering method, electrons are bombarded in a vacuum to a flat target, and the target atoms are excited and coated on the sample substrate.
The chemical vapor deposition method is a method in which a substrate is heated while a reaction gas or a gas mixture is introduced, and a product which is decomposed or reacted at a high temperature is deposited on a substrate to form a dense material.
Conventional heating or drying involves convection or convection and radiation combined gas or electrical resistance heating, which is commonly used in the manufacture of ceramic materials to dehumidify ceramic green bodies.
The heating rates associated with conventional heating methods, temperature control and heat applications often result in high energy consumption and unstable product quality.
1. Microwave radiation for industrial heating has been used to accelerate the drying of ceramic green bodies.
2. The microwave energy directly interacts with the ceramic green body to directly heat the ceramic body,
3. Microwave heating is usually faster than conventional drying. A single microwave heater or multiple microwave heaters are used to heat and dry the ceramic green body.
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Product Details:
| Condition | New | Application | Ceramics Sintering Machine |
| Type | Sintering Machine | Product name | Microwave Machine |
| Place of Origin | Shandong, China (Mainland) | Heating source | Electricity |
| Brand Name | Leader | Material | 304 Stainless Steel |
| Model Number | TB - Microwave Machine | Color | Silver Gray |
| Voltage | 220v/380v | Capacity | 120 - 1800 kg / h |
| Power(W) | 30KW ( customize ) | Control system | PLC |
| Dimension(L*W*H) | 1380*1200*2000 ( customize ) | Transmission speed | 0 - 10 m / min (adjustable) |
| Weight | 3t | Function | Drying , Sterilization , Roasting |
| Certification | CE Certificate | After-sales Service Provided | Engineers available to service machinery overseas |
| Name | Tunnel Microwave Ceramics Sintering Machine | Warranty | 1 Year |
Supply Ability:
100 Set/Sets per Month Urgent order inform us in advance
Packaging & Delivery
Packaging Details
Inside: plastic bag.
Outside: wooden case (adopt the wooden case or wooden pellets depended on clients' requirement).
Port
Qingdao
Lead Time :
| Quantity(Sets) | 1 - 1 | >1 |
| Est. Time(days) | 25 | To be negotiated |
| Item | LD-20KW | LD-30KW |
| Power supply | 380V,50Hz | 380V,50Hz |
| 3phase 5 line | 3phase 5 line | |
| Related input apparent power | ≤ 26KVA | ≤ 38KVA |
| Microwave output power | ≥ 20KW | ≥ 30KW |
| Temperature range & accuracy | 0-200℃;1℃ | 0-200℃;1℃ |
| Relative humidity | ≤80% | ≤80% |
| Inlet and outlet height | 80mm(adjustable) | 80mm(adjustable) |
| Microwave power adjust range | 0-20kw | 0-30KW |
| Transport belt width | 500mm(adjustable) | 750mm(adjustable) |
| Outline size(mm)(LXWXH) | 8500x820x1750(adjustable) | 8500x1500x1750(adjustable |
| Transmission speed | 0-8m/min(adjustable) | 0-8m/min(adjustable) |
| Microwave output frequency | 2450 ± 50MHZ | 2450 ± 50MHZ |
| Environment temperature | 0-50℃ | 0-50℃ |
| LD-40KW | LD-60KW | LD-100KW |
| 380V,50Hz | 380V,50Hz | 380V,50Hz |
| 3phase 5 line | 3phase 5 line | 3phase 5 line |
| ≤ 50KVA | ≤ 72KVA | ≤ 130KVA |
| ≥40KW | ≥60KW | ≥100KW |
| 0-200℃;1℃ | 0-200℃;1℃ | 0-200℃;1℃ |
| ≤80% | ≤80% | ≤80% |
| 80mm(adjustable) | 80mm(adjustable) | 80mm(adjustable) |
| 0-40KW | 0-60KW | 0-100KW |
| 750mm(adjustable) | 1200(adjustable) | 1200(adjustable) |
| 10500x1500x1750(adjustable) | 10500x1800x1750(adjustable) | 16200x1800x1750(adjustable) |
| 0-8m/min(adjustable) | 0-8m/min(adjustable) | 0-8m/min(adjustable) |
| 2450 ± 50MHZ | 2450 ± 50MHZ | 2450 ± 50MHZ |
| 0-50℃ | 0-50℃ | 0-50℃ |
Microwave dryers and systems are particularly suitable for heating and thus drying thin walled ceramic green bodies. Drying as used herein refers to reducing the liquid content of the body to a desired value.
The heating and drying of the ceramic green body is carried out to such an extent that the ceramic green body can be machined without causing any damage or unacceptable deformation.
Thin-walled cylindrical ceramic green bodies, such as cylindrical ceramic green bodies having a honeycomb structure with a honeycomb density of from 100 to 1600 cells per square inch, when the moisture contained therein is less than about 5% of the initial moisture content, The ceramic green body is sufficiently dry for processing purposes.
In another embodiment, the ceramic green body is sufficiently dry for mechanical processing purposes when the ceramic green body contains less than about its initial moisture content.
♦Simple to operate: The PLC system is simple, stable, safe and friendly,so it is convenient to use.
Equipment Parameters:
| NO. | Model | Power(kw) | Dehydration capacity(kg/h) | Sterilization capacity(kg/h) | Size(mm) |
| 1 | TB-12KWSP | 12 | 12 | 120-150 | 7010*840*1750 |
| 2 | TB-20KWSP | 20 | 20 | 190-240 | 9350*840*1750 |
| 3 | TB-30KWSP | 30 | 30 | 300-380 | 11690*840*1750 |
| 4 | TB-40KWSP | 40 | 40 | 390-500 | 10520*1060*1750 |
| 5 | TB-50KWSP | 50 | 50 | 500-630 | 11690*1060*1750 |
| 6 | TB-60KWSP | 60 | 60 | 600-750 | 12860*1060*1750 |
| 7 | TB-70KWSP | 70 | 70 | 700-870 | 14030*1060*1750 |
| 8 | TB-80KWSP | 80 | 80 | 800-1000 | 12680*1200*1750 |
| 9 | TB-100KWSP | 100 | 100 | 1000-1250 | 15200*1200*1750 |
| 10 | TB-150KWSP | 150 | 150 | 1500-1850 | 21050*1200*1750 |
| 11 | TB-200KWSP | 200 | 200 | 2000-2500 | 25050*1200*1750 |
1. Daub coal oil on the surface of the machines.
2. Plastic film as the inner packing.
3. Standard export wooden case as the outer packing.
4. Train, ship or depend on clients' requirement
1. A food grade standardized machine made of 304 stainless steel can retract your food microwave oven.
2. Sintering equipment energy saving grade: 30% - 60%
3. Improve production efficiency by more than 20%
4. Safe and environmentally friendly: The microwave oven only consumes electricity and does not pollute the environment and food.
3 microwave sintering equipment is mainly used in the following fields:
A. Microwave drying
Applicable to the drying of tea, grain powder, chemical powder, medicine, flower bud, deep-dried fruit, candied fruit, vegetables, vegetable powder, auxiliary agricultural products, flowers, health products, etc.
B. Microwave curing
It is suitable for the deodorization of cereals such as black beans, tartary buckwheat, barley, nuts and the like.
C. Microwave disinfection
For the sterilization of fungal products, such as mushrooms, mushrooms, oyster mushrooms, mushrooms, fungus, golden ear, white fungus, straw mushroom, enoki mushroom, Hericium erinaceus, bamboo bud, Mongolian mushroom, porcini, morel, fragrant Apricot mushroom, rivet mushroom, sticky cap boletus, red mushroom.
D. Microwave expansion
Starch puffed food processing (such as corn, rice, millet), protein food puffing (such as soybeans, meat, etc.) and fruit and vegetable materials puffed.