Recently, a large commercial drone jointly developed by the aviation industry Shi Fei and Beijing Tianyu Hangtong Technology Co., Ltd.-"Hongyan" successfully flew for the first time at an airport in Xinjiang. This innovative R & D project is the result of the joint efforts of the aviation industry Shi Fei with platform advantages, manufacturing advantages, Beijing Tianyu R & D advantages, and capital advantages. It is an exploration of mixed ownership of projects by state-owned enterprises and private enterprises. The successful first flight of this large commercial drone is an important event in the history of the development of China's drone industry, marking the achievement of staged results in the pilot work of airworthiness certification of 5B aircraft modified UAVs.
In order to further broaden the application areas of mature platforms, according to market demands such as logistics and cargo transportation, forest fire extinguishment, agricultural and forestry plant protection, and the development trend of drones, Shi Fei and Beijing Tianyu organized a social technology innovation team to intelligently upgrade the 5B aircraft. On the basis of excellent quality, simple structure, low production cost, and convenient use and maintenance, it makes it shine a new year. The project has a maximum takeoff weight of 5.25 tons and a maximum mission load weight of 1.5 tons. The payload capacity currently ranks first among commercial drones, with a flight altitude of up to 4500 meters, a cruising speed of 160 kilometers per hour, and a maximum range of 1560 thousand. M, the take-off and landing distance is not more than 200 meters, it can adapt to the conditions of snow mountains, mountains, deserts, Gobi, grasslands, water (replace tires, sledges, buoys, skateboards, etc.), and can access complex areas, terrain and Airstrip to meet the needs of material transportation in remote and impoverished areas and mountainous areas with poor transportation. The UAV of this project also has the characteristics of short take-off and landing distance, large load capacity, large warehouse capacity, high safety, strong applicability, excellent cost performance, etc., and has a large application space.
After completing the airworthiness verification of the UAV system, it will develop and promote the application of UAVs for special scenarios and quickly enter the domestic and international markets.
Polyvinyl Chloride (PVC) waterproof membrane is a new polymer waterproof membrane which is made from polyvinyl chloride resin, and mixed with plasticizer, filler, antioxygen, ultraviolet absorber and other auxiliaries. we adopts automatic mixing of raw material, double-screw extruder and delicate three-roller calender equipment in the PVC membrane production. PVC waterproof membrane features dimensional stability and high tensile strength, being a best choice for many civil and industrial projects. PVC waterproof membrane mainly falls into two categories: Homogeneous & Reinforced, each with different thickness specifications. Reinforced PVC waterproof membrane employs a fabric reinforced layer in the middle, it enhances the breaking and tear strength.
Features:
- Excellent performance in aging resistance, service life of 20 years for exposed use, and 50 years for non-exposed application
- High puncture and rooting resistance, especially suitable for planting roof system
- Easy installation and hot-air welding seam, environment friendly
- High tensile strength and elongation, size stability
- Good plasticity, convenient for detailing and coners installation
- Inherently fire resistant
Performance Characteristics:
Anti-aging , high plasticity , root system penetration resistance , inflaming retarding , environmental protection stain resistance , high tensile strength ,good elongation , excellent dimensional stability , and less cost.
Executive Standard:
GB18173.1-2012 GB12952-2011
Specification:
Thickness: 1.0-2.0mm Width: 2m
Application:
Technical Data:
ASTM Standard D-4434/D-4434M ASTM Standard for
PVC Sheet Roofing
No.
Item
Specification
Type II
Type III
Type IV
1
Overall thickness of PVC sheet, min, mm (in.)
1.14 (0.045)
1.14 (0.045)
0.91 (0.036)
2
Thickness over scrim, min. mm (in.)A
0.40 (0.016)
0.40 (0.016)
0.40 (0.016)
3
Tensile strength at break, min, MPa (psi):
Machine direction
10.3 (1500)
...
...
Cross-machine direction
10.4 (1500)
...
...
4
Breaking strength, min, kN/m (lbf/in.)
...
35 (200)
48 (275)
5
Elongation at break, min, %
Machine direction
250
15B
25B
Cross-machine direction
220
15B
25B
6
Seam strength, min, % of tensile or breaking strength
75
75
75
7
Retention of properties after heat aging
Tensile strength, min, % of original
90
...
...
Breaking strength, min, % of original
...
90
90
Elongation, min, % of original
90
90
90
8
Tear resistance, min, N (lbf)
45.0 (10.0)
...
...
9
Tearing strength, min, N (lbf)
...
200 (45.0)
400 (90.0)
10
Low temperature bend
pass
pass
pass
11
Accelerated weathering test
Cracking (73 magnification)
none
none
none
Crazing (73 magnification)
none
none
none
12
Linear dimensional change, max, %
0.1
0.5
0.5
13
Change in weight after immersion in water, max, %
±3.0
±3.0
±3.0
14
Static Puncture Resistance
pass
pass
pass
15
Dynamic Puncture Resistance
passC
passC
passC
PVC Waterproofing Roll Material
Pvc Waterproofing Roll Material,Flexible Pvc Material Waterproof Roll,Pvc Sheet Rolls For Waterproofing,Pvc Waterproof Roll Membrane Material
Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com