First, the silicon carbide industry development statusSilicon carbide fine powder as a new multi-functional composite materials, in
recent years, is widely used in high-end solar energy, cutting grinding
semiconductor, LED, nonmetal ceramics, high-performance sealing rings
and other fields. Especially
in recent years, both domestic and foreign media and industrial
policies are strongly boost the rapid development of this emerging
industry. Strong
development of photovoltaic industry expectations, resulting silicon
carbide industry hot, attracting a large number of enterprises and
social investors flocked to overcome the energy conservation and other
multi-pressure silicon carbide production enterprises of all sizes can
be described as everywhere, the burgeoning optimism .In
recent years, as the global voice of the yearly high energy saving, new
energy photovoltaic enterprises to obtain a triumph of development,
especially in the photovoltaic industry in 2010 experienced a spurt of
development. With
the rise of the photovoltaic industry, for important materials as
silicon wire cutting silicon carbide fine powder to form a huge demand. 2010,
the global installed capacity of 15.7GW, the demand for silicon carbide
fine powder of about 260,000 tons (of green silicon carbide fine
powder), known to be projected green silicon carbide blocks about
500,000 tons of raw materials. In
the case of expectations and optimism, our green silicon carbide
production capacity has reached 1.6 million tons, mainly distributed in
Qinghai, Gansu, Xinjiang and other regions, serious excess capacity.Into
2011, the photovoltaic industry experienced a 2005-2010 compound annual
growth rate of more than 40% of rapid growth, this year from April to
May, the most important by the European PV market policy changes, the PV
installed capacity is almost stagnant state. Serious
overcapacity photovoltaic industry chain inventory pressure makes
drastic correction, prices have been falling, from integrated systems,
components, into silicon, and even higher threshold to the upstream
polysilicon raw materials, industrial chain spared. Statistics
show that since the start of April 1st polysilicon spot market prices
fell 40% (by early April of 780,000 yuan / ton down to the current
350,000 yuan / ton), silicon prices fell more than 40%, component prices
fell 27%.The
whole industry chain prices fell rapidly, so that all photovoltaic
enterprise gross margins have fallen sharply, rapidly narrowing profit
margins, some no-cost or even a loss advantage for SMEs, the operating
rate fell below 50%. Tragic extent comparable to the 2008 financial crisis.In
this context, as part of its industrial chain on a ring, silicon
carbide, can not escape the production enterprises, the products have no
market price, business situation deteriorated sharply, the industry
reshuffle is inevitable.Second, the silicon carbide industry, "danger" and "machine"1, the prices are low, silicon carbide market boom downAs
the product homogeneity serious, 2011 massive release of new capacity,
the formation of short-term relative surplus in the western region of
silicon carbide falling price trend was sustained for several months.Price
from raw material silicon carbide blocks early April 11,000 yuan / ton
down to the current 9000 yuan / ton, and even some manufacturers have
reported 8000-8500 yuan / ton, has formed a short-term vicious cycle. Now,
with the western region to cancel preferential tariff policy (tariffs
generally reached 0.4 yuan / kWh), a lot of silicon carbide smelting
enterprises have already meager profit, almost in barely maintain
production.In
terms of silicon carbide fine powder, as its main application market,
the swings in the photovoltaic industry but also to the silicon carbide
fine powder tremendous impact on the market. January
and February this year, the price of PV modules and cells begin to
fall, followed by silicon, in May after the upstream polysilicon prices
also began a marked decline. After nearly three months of continuous decline, the price of polysilicon has been the lowest in six years. Quotes
from the entire PV industry decreased downstream to upstream reverse
conduction, still no signs of recovery, according to a rough estimate,
at least silicon carbide fine powder prices fell more than 15%, or even
higher. More
worrying still is that prices fell sharply, while turnover has not
significantly expanded, and have actually appeared in price and volume
of Qi or situation.2, the impact of changes in the economic environment of silicon carbide industrySince March, the country and more off-season "power shortage" phenomenon. National
Energy Board and the Development and Reform Commission has issued
restrictions, especially high energy-consuming industries industrial
electricity, industrial electricity price increases and a series of
policies already in a recession for the silicon carbide industry and
form a larger impact.2011
With the tightening of national macro-control, the central bank to
raise interest rates three times, five times raised the deposit reserve
ratio, survival and development of SMEs facing difficulties. SiC bad financial strength within the industry enterprises, survival woeful.Sharply
increasing pressure of RMB appreciation, silicon carbide products
belong to the state limit the export products, should be noted that this
may result in more domestic-oriented enterprises, domestic market
competition further intensified.Labor shortageWith
the domestic economy to pick up, now the national general labor
shortage, silicon carbide industry is no exception, in the current
industry downturn, industry and employment issues more prominent,
general workers, the wages of skilled workers have a considerable margin
in the years after rise,
because silicon carbide industry production environment is relatively
poor labor intensity is relatively large, the actual labor costs are
more difficult to circumvent the hard costs, has given enormous pressure
on silicon carbide business.3, changes in the silicon carbide industry's largest PV market bearishAs
the world's top two photovoltaic market, Germany, Italy accounted for
more than 60% of the world PV market share, and in 2011, following the
German government decided to cut solar subsidies 16% after, 1 April, the
Italian government introduced a new PV
subsidy policy, from the commencement date until the end of 2012, the
PV subsidy cuts of 15% -20%; 2013-2015 PV subsidy will be reduced by 30%
-35%. As
opposed to the traditional current cost of photovoltaic energy is still
at a high level, has always been driven by the development of policy,
the amount of subsidies granted by the government sector and the
development of photovoltaic industry boom of the high positive
correlation sudden policy lowered, causing the biggest photovoltaic
industry amplitude adjustment, the adjustment even more than in 2008 when the international financial crisis is even larger. This led directly to the silicon carbide fine powder prices and demand reduction.4, alternative technologies diamond wire saw (with wire-cutting example) has developed rapidlyWafer
cutting technology currently available as an alternative to recent
advances in technology, that Meyer Berger embedded diamond wire saw
technology.Diamond
wire saw has the world's largest wafer manufacturers - GCL Group
successfully tested, while China PV industry representatives - Suntech
currently being tested, is expected to the recent success. In
addition, listed companies Henan diamond, Huanghe Whirlwind and other
companies also recently announced a major investment strategy, the
establishment of a joint venture to enter the diamond powder production,
mainly used for diamond wire cutting wafers. This information is all reflected: Diamond wire cutting is accelerating to enter the field of solar wafer cutting pace. Will have a direct impact on the future use of the silicon carbide powder.5, quasi-monocrystalline solar cell has been officially put on the marketQuasi-monocrystalline
solar cell conversion efficiency of monocrystalline cells with the
same, but with the cost of the process rather polycrystalline cells,
quasi-monocrystalline ingot technology resulting product has a single
crystal efficiency, also has a low cost of polysilicon, the advantages
of low attenuation .June
18, 2011, China Henan Anyang Phoenix Solar in Shanghai announced mass
production of its quasi-monocrystalline material, will be officially put
on the market. At
present, more than 10 companies are using the quasi-monocrystalline
silicon photovoltaic Phoenix, where two will begin in July bulk orders.From
these unfavorable factors, the silicon carbide industry to achieve
healthy development as soon as possible out of the current shadow, in
addition to expect gradual improvement in the external environment
outside the industry itself should be as soon as possible to improve and
enhance the revolutionary future situation, the arduous tasks and Road away.
Black silicon carbide is quartz sand, petroleum coke and quality silica as the main raw material in electric arc furnace smelting. Its hardness between corundum and diamond, the mechanical strength is higher than corundum, brittle and sharp. Black silicon carbide SiC containing approximately 98.5% higher than its toughness green silicon carbide, mostly for processing low tensile strength of the material, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.
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