Many other ferroelectric superconductor and tend to have a perovskite structure or a structure derived, and superconductors, in particular ferroelectrics has wide application in the field of information industrially functional materials, and therefore, here briefly perovskite feature. [Chemical composition] Na, K, Ce, Fe, Nb, Ta, Nd, and La elements may be used as a homogeneous mixture. [Crystal structure] is more than 900 ° C is an equiaxed crystal system; Figure Y-9 Crystal structure of perovskite (quoted from Pan Zhaoyu et al., 1993) [Form] is a cubic crystal form. The streak of the parallel crystal ribs on the cubic crystal face is the result of the formation of polycrystalline twin crystals when the high temperature variant is transformed into a low temperature variant. [Physical properties] brown to gray-black; white to yellowish gray streaks; adamantyl gloss. The cleavage is not complete; the fractal is broken. Hardness 5.5 to 6. The relative density is 3.97 to 4.04 (larger in Ce and Nb). [genesis and occurrence] Changcheng sub-minerals are found in alkaline rocks, and sometimes enriched in altered pyroxenite, mainly symbiotic with titanium magnetite. [Identification characteristics] The cubic crystal form and the polycrystalline double crystal grain on the crystal face. [Main use] It can be used as a mineral raw material for refining titanium, rare earth and antimony . Construction Hoist Steel Structure
Construction Hoist Steel Structure means the construction hoist spare parts like Construction Hoist Mast Section, Passenger Hoist Cage, Construction Hoist Wall Tie and so on.
The length of each mast section is 1508mm, the rack is fixed on the mast by three bolts and it can be exchanged. For the single cage hoist there is only one rack on the mast section, and the mast section can be used for the double cages hoist by increasing one rack. The section of the mast is diverse, select one type section according to different hoist. The mast sections are bolted together with M24 bolts and nuts to form mast. The mast is tied to the building with tie-in and is the guide rail of the cage. According to the user`s or circumstance`s request, surface of mast is hot dip galvanized, which can prevent it rusting.
The tie-in(wall tie) is the linked part between mast and building, to keep the stabilization of the mast. Distance between the tie-in is about 6~9m alone the mast. There are several types of tie-in. Select one of them according to need, tie-in can adjust the vertical of mast in definite ranges. According to the user`s or circumstance`s request, surface of the tie-in is hot dip galvanized, which can prevent it rusting.
The cage dimension(L×W×H)(m): 3×1.5×2.5. We can also manufacture cages of other size according to the user`s needs. The material of the cage and the door material can be steel wire weave, aluminum-plastic panel, punched-plate, figured aluminum board or other type according to user`s needs. The gate is equipped with drawing gate,include small turn over gate.
Construction Hoist Mast Section,Building Hoist Mast Section,Passenger Hoist Cage,Construction Hoist Wall Tie, Construction Hoist Anchorage Frame SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.syconstructionhoist.com
a 0 = 0.385 nm; Z = 1. Conversion to orthorhombic system below 600 ° C; a 0 =0.537 nm, b 0 =0.764 nm, c 0 =0.544 nm; Z=4. In the high temperature variant structure, Ca 2+ is located at the center of the cubic unit cell, and 12 O 2 - encloses a coordinating cubic octahedron with a coordination number of 12; Ti 4 is located at the top of the cubic unit cell, which is 6 O 2- is surrounded by a coordination octahedron with a coordination number of 6. The [TiO 6 ] octahedrons are associated in a co-angled manner. The entire structure can also be considered as O 2- and Ca 2+ together to form the closest packing of the six sides, and Ti 4+ is filled in the octahedral space (Figure Y-9).
Perovskite
CaTiO 3