According to the report, there are 1,248 LED enterprises in the city, of which Nanhai District is the main gathering area of ​​LED industry, accounting for 51.6% of the number of enterprises in Foshan. As of November 2014, the output value of the full LED industry chain in Nanhai District is expected to reach 10 billion yuan in 2014, a year-on-year growth rate higher than the provincial growth rate of 21% in 2014. According to the report, among the nearly 650 LED companies in the South China Sea, 50% mainly rely on OEM production. The report recommends that the “Da Nanhai Lighting†brand be promoted as a whole.
Exports: North America sales were pretty <br> <br> According to the most relevant data, currently the city's total LED enterprise 1248, Nanhai District, which is the main gathering area LED industry, the number of area businesses 645, the number of enterprises accounted for 51.6 Foshan %.
According to the report, as of November 2014, there were more than 650 LED industry-related enterprises in Nanhai District, an increase of about 40% compared with 2013. The output value of the full LED industry chain in Nanhai District is expected to reach 10 billion yuan in 2014, a year-on-year increase of 25%, which is higher than the growth rate of Guangdong Province in 2014 of 21%.
The report finds that the LED lighting fixtures and other LED products in the South China Sea are mainly exported to developed countries such as North America and Europe, as well as developing countries such as Southeast Asia, Latin America and the Middle East.
Brand: more than half of enterprises rely on OEM <br> <br> in brand building, visited enterprises and research reports based on the questionnaire found that 32 percent of most companies rely on independent brand management, brand management completely independent of enterprises accounted for only 18%; and 50% of companies rely mainly on OEM production.
Through the interview, the report found that LED companies in Nanhai District generally have a high awareness of the brand, especially the existing OEM/ODM (two OEM models) enterprises, and hope to guide consumers' brand consumption and improve by building their own brands. The profit rate of products, establish a brand enterprise with long-term operation.
The report believes that the original lighting industry foundation in Nanhai District is relatively complete, and the leading enterprises in the jurisdiction have transformed into the LED application market on a large scale. The original brand advantage has begun to stand out, but it lacks greater market influence.
The report recommends that Nanhai should vigorously cultivate new brand enterprises and products, enhance brand enterprises and products that already have certain competitiveness, and promote the rational survival of leading brands, growth brands, follow-up brands and vacant brands through differentiated support. Space, form a good brand ecological structure in the region, and jointly build and promote the "Da Nanhai Lighting" brand.
The Co-Al Co-doped Barium Titanate
Lead-free Piezoelectric Ceramics was successfully developed by Yuhai company
through repeated experiments. By Researching the influence of Co-Al Co-doping
on the structure and properties of Barium Titanate-based piezoelectric
ceramics, the formulation and preparation technology of Barium Titanate-based
piezoelectric ceramics were optimized. Yuhai`s BaTiO3 was prepared by conventional
solid-phase sintering method, with the piezoelectric constant d33 (>170pC/N),
dielectric loss tgδ≤0.5% and mechanical coupling coefficient Kp≥0.34.
Barium titanate lead-free piezoelectric
ceramics are important basic materials for the development of modern science
and technology, which was widely used in the manufacture of ultrasonic
transducers, underwater acoustic transducers, electroacoustic transducers,
ceramic filters, ceramic transformers, ceramic frequency discriminators, high
voltage generators, infrared detectors, surface acoustic wave devices,
electro-optic devices, ignition and detonation devices, and piezoelectric
gyroscope and so on.
Application: military, ocean, fishery, scientific research,
mine detection, daily life and other fields.
China Patent of Yuhai company`s BaTiO3
Chinese Patent No.: ZL 2011 1
0126758.6
Name: Lead-free Barium Titanate
Piezoelectric Material with Addition of Cobalt and Aluminum
Lead free piezo material BaTiO3
Lead-free Material
Properties
BaTiO3
Dielectric Constant
ɛTr3
1260
Coupling factor
KP
0.34
K31
0.196
K33
0.43
Kt
0.32
Piezoelectric coefficient
d31
10-12m/v
-60
d33
10-12m/v
160
g31
10-3vm/n
-5.4
g33
10-3vm/n
14.3
Frequency coefficients
Np
3180
N1
2280
N3
Nt
2675
Elastic compliance coefficient
Se11
10-12m2/n
8.4
Machanical quality factor
Qm
1200
Dielectric loss factor
Tg δ
%
0.5
Density
Ï
g/cm3
5.6
Curie Temperature
Tc
°C
115
Young's modulus
YE11
<109N/m3
119
Poison Ratio
0.33
Lead Free Piezoelectric Elements
Piezo Element,Piezo Ceramic Elements,Piezoelectric Ceramic,Pzt Tubes
Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com