DONGGUAN LONROY EQUIPMENT CO LTD
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 200 |
| Delivery Time | 5-8 work days |
| Packaging Details | wooden package |
| Rated Voltage | 220V |
| Rated Power | 8KW |
| Rated Temperature | 1350 °C |
| No-Load Power Loss | ≤2KW |
| Warranty | 1 Year |
| Brand Name | Lonroy |
| Model Number | LRTQ-II |
| Certification | Includes Calibration Certification |
| Place of Origin | China |
View Detail Information
Explore similar products
Ceramic Tile Glaze Cracking Tester For Ceramic Tile Anti Cracking Test ISO10545
LRH Series ISO 8302 Multifunctional Fast Thermal Conductivity Tester
LRH-300 Thermal Conductivity Tester For Heat Insulation Materials
LRH-400 Thermal Conductivity Tester Heat Shield Plate Method
Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 200 |
| Delivery Time | 5-8 work days | Packaging Details | wooden package |
| Rated Voltage | 220V | Rated Power | 8KW |
| Rated Temperature | 1350 °C | No-Load Power Loss | ≤2KW |
| Warranty | 1 Year | Brand Name | Lonroy |
| Model Number | LRTQ-II | Certification | Includes Calibration Certification |
| Place of Origin | China |
This type of high-temperature breathable performance tester is suitable for evaluating the breathable performance of mold shells used in investment casting. It complies with the high permeability method specified in JB/T4153-1999 and the fourth part of the performance test method for mold shells in investment casting as per HB5352.4-2004, namely the determination of breathable performance.
2.Working Principle
1. Melting furnace: The maximum operating temperature is 1000°C.
2. Quartz glass tube: Inner diameter 6mm, outer diameter 8mm, length 400mm.
3. Micrometer caliper: Measuring range is 0mm to 150mm, with an accuracy of 0.02mm.
4. Sample: The shape and size of the sample are shown in Figure 2.
Sample preparation
⑴ Take a celluloid ping-pong ball and a glass tube. Heat one end of the tube to around 250°C. Insert it into the center of the ping-pong ball while it is still hot. Then, use wax (such as beeswax) to firmly bond and seal the ping-pong ball to the glass tube.
⑵ The sample modules should be coated with six layers according to the general shell coating process or in accordance with the specific production process requirements.
⑶ After the sample has dried for 24 hours, it is subjected to calcination. Place it in the furnace at a temperature lower than 100°C, then slowly raise the temperature to 250°C to 300°C, maintain the temperature for a period of time to allow the ball to vaporize, then gradually increase the temperature to 900°C (for silica sol and quartz shell, it is 750°C), maintain the temperature for 2 hours, and then cool down to below 300°C before taking it out of the furnace.
⑷. Sample quantity
The number of valid samples is three.
3.Technical Parameter
| Parameter | Specification | Unit |
| Model | DTQ-II | - |
| Rated Power | 8 | kW |
| Rated Voltage | 220 | V |
| Rated Temperature | 1350 | °C |
| Cold-to-Max Temp. Time | ≤60 | min |
| No-Load Power Loss | ≤2 | kW |
| Heating Element Connection | Series | - |
| Heating Element Specification | DG135/100/12/40, U-shaped | mm |
| Chamber Dimensions (Ø×H) | Ø70 × 150 | mm |
| Net Weight | 90 | kg |
Company Details
Business Type:
Manufacturer,Seller,Exporter,Agent
Year Established:
2008
Total Annual:
$5 million -$8 million
Employee Number:
80~200
Ecer Certification：
Verified Supplier
Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes... Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes...
Get in touch with us
Leave a Message, we will call you back quickly!