The price of domestic anti-radiation lead glass has dropped sharply. The molecular arrangement of glass is irregular, and its molecules have statistical uniformity in space. In an ideal state, the physical and chemical properties (such as refractive index, hardness, modulus of elasticity, coefficient of thermal expansion, thermal conductivity, electrical conductivity, etc.) of the homogeneous glass are the same in all directions.
The glassy substance is generally obtained by rapid cooling of the melt. When the transition from the molten state to the glass state, the viscosity increases sharply during the cooling process, and the particles do not have a regular arrangement to form crystals, and no latent heat of crystallization is released. Therefore, the glass state The substance contains a higher internal energy than the crystalline substance, and its energy is between the molten state and the crystalline state, and belongs to a metastable state. From a mechanical point of view, glass is an unstable high-energy state, such as the tendency of low-energy state transformation, that is, the tendency of crystallization, so glass is a metastable solid material.
The process of the glassy substance from the molten state to the solid state is gradual, and the changes in physical and chemical properties are also continuous and gradual. This is markedly different from the crystallization process of the melt, and a new phase is inevitable in the crystallization process, and many properties are mutated near the crystallization temperature point. The glassy substance is completed from a molten state to a solid state in a wide temperature range. As the temperature gradually decreases, the viscosity of the glass melt gradually increases, and finally a solid glass is formed, but no new phase is formed in the process. On the contrary, the process of heating the glass into a melt is also gradual.
In the off-season lead market where high temperature and heavy rain are concentrated, the sharp rise in the futures market has once again stimulated the upswing of the spot merchants. The prices of lead glass in Tianjin, Shanghai and Zhengzhou are slightly higher, and the prices of medical lead glass in Guangzhou and Zhengzhou are slightly increased. Lead The price of mines in Wu'an and Wu'an area has shifted upwards. The price of Tangshan's carbon billet has been raised by 20-30 yuan in recent days. Although the supply and demand is weak and the market mentality is pessimistic, the spot lead market is still relying on the rise of the period. High, in the short term, the timing of the bearish rhythm needs to be re-examined. Specifically, the increase in lead glass futures and hot-rolled trading was initially driven by the Fed’s suspension of interest rate hikes. In the near term, it was boosted by the weakening of the Brexit referendum. In the short term, there may be a small range of counterattacks. At the same time, from a technical point of view, the volume of follow-up (although still not large) is relatively favorable for the continuation of the rising market, will continue to drive the operating mood of the spot lead market. However, the pressure on the lead glass resources in the circulation link is also expected to fall. The steel production data released by the Steel Association has declined in the near future. The increase in the total resources of lead glass is smaller than the increase in total output (but it will also become late). The market's worries are that the price pressure is worse than expected. In addition, the price of Tangshan billet is 槛1,780-1,800 yuan, which is the production cost line of the main lead enterprises. It has certain compressive characteristics, and the market is also glued here. Therefore, in the short-term, the rise of the period is intended to be a counter-attack function after the previous Fed rate hike and the anti-European referendum bad expectations are expected to fall. The overall space expectation is narrow, but its small push-up rhythm will be on the spot merchants. The mentality forms a support, which in turn causes the lead price to be adjusted in a small range. On the whole, the weak situation is at a glance, and the general trend of the downward adjustment of the lead market has not changed, but the time node may be postponed.
High temperature and rain are the characteristics of the weather in June, and the lead market can only be considered cold, but it is better to be affected by the limited production in Tangshan, and the market price has not dropped significantly. However, as time went to the end of the year, the southern regions successively entered the plum, the rain and rain continued, the supply pressure did not decrease, the demand fell into a downturn, and the capital pressure and cost support were insufficient. The whole market still faced great pressure. It is expected that the market price will still be difficult in the next ten days. it is good.
First of all, from the perspective of supply, according to the statistics of China Steel Association, in early June 2016, the China Steel Association's lead glass was 1,741,600 tons, a decrease of 36,100 tons from the previous period, a decrease of 2.03%. According to this estimate, the total daily lead glass production in the country was 2,347,500 tons, which was 1.59% lower than the previous period. It can be seen that with the partial lead enterprises turning from profit to loss, the lead factories that have reduced production and maintenance have increased, and the lead factory production has declined. However, starting from this week, the intensive production and production phase of Tangshan has officially ended. The lead blast furnace has resumed production, and the operating rate is expected to rise again in the later period. The market is still facing increasing supply pressure. At the same time, it is worth noting that the lead glass factory inventory is still in a state of recovery, so the overall supply side, the pressure on the market has not decreased.
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