新型自动合面机及其设计

目前国产的合面机,多数为单驱动卧轴铰龙旋转式,少数为斜轴铰龙旋转式,但均不能自动出料,不仅劳动强度大,生产效率低,自动化程度低,而且合面的质量不规范。为此,我们结合国产合面机的现有状况,并参照意大利“ESMACH”

金丝蜜加工技术

金丝蜜是以红薯、蔗糖、面粉等原料加工而成的一种类似萨其玛的小食品,效益可观。主要设备绞肉机一台,蒸锅一个,电炸锅或铁锅一个,熬糖锅(铜锅)二个,螺杆挤条机一台,台秤一台,模子数个,和面机一台。模子系用四根木框条制成,每根3.3厘米见方,可以装拆,四端互相搭扣,便装成方形木框。

新甘薯制作粉条(粉丝)

一、主要漏粉设备淀粉合面机,不锈钢保温盆,配套电机(4千瓦)。真空合面机可以调节真空度,芡软硬,在真空下做的粉条,亮度好,韧性大。打瓢机采用机械式自动打瓢,保证漏粉的粗细均匀。夹层预热锅,配锅二十印、二十四印,要及时向锅内补充热水,保证漏粉的连续进行,显著提高粉条(粉丝)产量和质量。

薯类精白粉丝的加工技术

怎样生产精白、耐煮、竞争力强的粉丝,下面谈谈一些技术措施,供广大加工粉条的专业户借鉴。一、主要设备:洗薯机、磨浆分离机、搅拌除沙机、过滤机、合面机、粉丝机。若想减少投资,只购磨浆分离机和粉丝机,其余手工操作也可。二、工艺流程:鲜薯——洗薯机——磨浆分离机——A型搅拌除沙机(脱色)——A型过滤机(粗滤)——B型搅拌除沙机(清洗)

薯类精白粉丝的加工技术

目前,不少村办粉条加工厂、专业户办粉条加工厂制出的粉条不耐煮,颜色也极不好看,效益很差。下面谈谈一些生产精白、耐煮、竞争力强的粉丝技术措施,供广大加工粉条的专业户借鉴。 一、主要设备:洗薯机,磨浆分离机,搅拌除沙机,过滤机,合面机,粉丝机。若想减少投资。

桃酥的品质改进及花粉保健桃酥

1 桃酥的品质 一般制作桃酥最适当的季节是在春秋季,而在夏冬季节生产的桃酥品质往往较差,寻找其原因发现主要是配料上的问题。传统配方中油脂用纯猪油,夏日气温高,猪油不冻结,使桃酥缺乏粘结力,成形困难,即使成形,边角也易出现裂纹或花纹不清,沟纹不深;另外,由于温度高,配料中要抢时间,以防止烊化或跑油。即使在冬季气温较低时,也会发生以上这些情况。

产品展台

甜玉米切粒机 由农业部规划设计研究院研制的HSCC-0.7型甜玉米切粒机,借鉴了国外最新甜玉米切粒技术,采用包容玉米籽粒根部切削技术,切刀与玉米籽粒根部呈弹性接触,可以随玉米果穗直径的不同而自动调整。

Sea level change and forecast in the future — climate of the past,today and the future

The sea-level change is resulted from superposition of sun, moon and other planeries, and earth itself, biological process, atmosphere and oceanography, as well as artificial actions. As a result, the sea level change is really a sensitive integral variation value of many variations, or a combined function of coupling effects of various big systems. Therefore the above mentioned superposed action of different systems and the coupling effect of sun earth and biological aspects may be called as sun earth biological coupling effect system. Based on this hypothesis, the corresponding sun dynamic, air dynamic, water dynamic and earth dynamic conceptional models are established in order to research the multiple coupling effects and feedback machsnism between these big systems. In order to determine the relations, effectness and coherent relation of different variations, the quantity, analysis is conducted through collective variation and stage division. The quantity analysis indicates that the earths spindle rotation speed is the dynamic mechanism controlling the sea level change of fluctuation. The change rate of sea level in the world is ＋1.32 ＋ 0.22 mm/a, while the sea level change rate in China is only＋1.39 ＋ 0.26 mm/a in average. If take the CO2 content as the climate marker, eight cold stages （periods） are grouped out since two hundreds years AC. The extreme cold of the eighth cold stage started approximately at 1850 years AC. and if the stage from the extreme cold to extreme warm is determined as long as 200 years, the present ongoing warm stage will end at about 2050 years, there after the temperature will begin to tower. If the stage between cold and warm extremes lasts for 250 years, then the temperature will become lower at about 2100 year. Until to that time, the sea-level is estimated to raise ＋7 - ＋11 ＋ 3.5 cm again, and there after, the sea level will begin the new lowering trend. In the same time, the climate will enter into next new cold stage subsequently.

薯类精白粉丝加工技术

目前,市场上销售的粉丝不耐煮、颜色差。为适应市场需要,生产出精白、耐煮、竞争力强的粉丝必须从提高技术入手。 一、主要设备 洗薯机、磨浆机、磨浆分离机、除砂机、过滤机、制芡机、和面机、粉丝机。

A novel method to improve interfacial bonding of compound squeeze cast Al/Al-Cu macrocomposite bimetals:Simulation and experimental studies

A facile and innovative method to improve bonding between the two parts of compound squeeze cast Al/Al-4.5 wt.%Cu macrocomposite bimetals was developed and its effects on microstructure and mechanical properties of the bimetal were investigated.A special concentric groove pattern was machined on the top surface of the insert(squeeze cast Al-4.5 wt.%Cu) and its effects on heat transfer,solidification and distribution of generated stresses along the interface region of the bimetal components were simulated using ProCAST and ANSYS softwares and experimentally verified. Simulation results indicated complete melting of the tips of the surface grooves and local generation of large stress gradient fields along the interface. These are believed to result in rupture of the insert interfacial aluminum oxide layer facilitating diffusion bonding of the bimetal components. Microstructural evaluations confirmed formation of an evident transition zone along the interface region of the bimetal. Average thickness of the transition zone and tensile strength of the bimetal were significantly increased to about 375 μm and 54 MPa, respectively, by applying the surface pattern.The proposed method is an affordable and promising approach for compound squeeze casting of Al-Al macrocomposite bimetals without resort to any prior cost and time intensive chemical or coating treatments of the solid insert.

Interfacial microstructure and mechanical behavior of Mg/Cu bimetal composites fabricated by compound casting process

Mg/Cu bimetal composites were prepared by compound casting method, and the microstructure evolution, phase constitution and bonding strength at the interface were investigated.It is found that a good metallurgical bonding can be achieved at the interface of Mg and Cu,which consists of two sub-layers,i.e.,layer I with 30μm on the copper side composed of Mg2Cu matrix phase, on which a small amount of dendritic MgCu2 phase was randomly distributed;layerⅡ with 140μm on the magnesium side made up of the lamellar nano-eutectic network Mg2Cu+(Mg) and a small amount of detached Mg2Cu phase. The average interfacial shear strength of the bimetal composite is measured to be 13 MPa.This study provides a new fabrication process for the application of Mg/Cu bimetal composites as the hydrogen storage materials.

Formation mechanism and wear behavior of gradient nanostructured Inconel 625 alloy

The formation mechanism and wear behavior of a gradient nanostructured(GNS) Inconel 625 alloy were investigated using SEM, TEM and ball-on-disc sliding wear tester. The results show that surface mechanical grinding treatment(SMGT) induced an approximately 800 μm-deep gradient microstructure, consisting of surface nano-grained,nano-laminated, nano-twined, and severely deformed layers, which resulted in a reduced gradient in micro-hardness from 6.95 GPa(topmost surface) to 2.77 GPa(coarse-grained matrix). The nano-grained layer resulted from the formation of high-density nano-twins and subsequent interaction between nano-twins and dislocations. The width and depth of the wear scar, wear loss volume, and wear rate of the SMGT-treated sample were smaller than those of untreated coarse-grained sample. Moreover, the wear mechanisms for both samples were mainly abrasive wear and adhesive wear, accompanied with mild oxidation wear. The notable wear resistance enhancement of the GNS Inconel 625 alloy was attributed to the high micro-hardness, high residual compressive stress, and high strain capacity of the GNS surface layer.

Filiform corrosion behaviour on machined AA7150 aluminium alloy

The microstructure and the filiform corrosion behaviour of machined AA7150 aluminium alloy were investigated using scanning and transmission electron microscopies combined with potentiodynamic polarization and filiform corrosion testing,respectively.It is found that the grain refinement,redistribution of alloying elements,and elements segregation at grain boundaries are evident within the near-surface region on the machined AA7150 aluminium alloy.The corrosion susceptibility of machining introduced near-surface deformed layer is significantly improved caused by the modified microstructure associated with severe deformation.Filiform corrosion resistance on the machined surface is obviously decreased,due to the surface roughness associated with machining tracks and the presence of the electrochemically more active near-surface deformed layer introduced by machining.

TBM tunneling in mixed-face ground: Problems and solutions

Mixed-face ground encountered in Tunnel Boring Machine(TBM) tunneling presents great challenges and may trigger potential hazards without warning. A detailed understanding of such unfavorable conditions is therefore critical to a successful bored tunnel. In this paper, we firstly present a brief review of the definition, classification and the factors related to mixed-face conditions. Secondly, for a better understanding of this topic, we investigate the main difficulties and problems involved in TBM tunnelling under mixed-face ground with detailed cases. Thirdly, from the viewpoint of rock-machine interaction, we give some suggestions on the corresponding mitigation measurements from three categories:(i) selection of TBM type and modification of TBM,(ii) condition of ground and(iii) optimization of TBM operation.

Preparation of Thin Film Composite Nanofiltration Membrane by Interfacial Polymerization with 3,5-Diaminobenzoylpiperazine and Trimesoyl Chloride

A new aromatic diamine,3,5-diaminobenzoylpiperazine （3,5-DABP）,was synthesized from 3,5-diaminobenzoic acid and 1-formyl piperazine.The structure of 3,5-DABP was identified by FT-IR spectra and 1H NMR spectra.With 3,5-DABP as aqueous monomer and trimesoyl chloride （TMC） as organic monomer,thin film composite （TFC） nanofiltration membranes were prepared by interfacial polymerization technology.The salt rejection order of these TFC membranes is Na2SO4MgSO4MgCl2NaCl.This sequence indicates that the membranes are negatively charged.

Formation Mechanism and Binding Energy for Body-Centred Regular Octahedral Structure of Li7 Cluster

The formation mechanism for the body-centred regular octahedral structure of Li7 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes for this structure of Li7 has been calculated by using the method of Gou＇s modified arrangement channel quantum mechanics （MACQM）. The result shows that the curve has a minimal energy of-52.169 73 a.u. at R = 5.06ao. When R approaches infinity, the total energy of seven lithium atoms has the value of-51.996 21 a.u. So the binding energy of Li7 with respect to seven lithium atoms is 0.173 52 a.u. Therefore the binding energy per atom for Li7 is 0.024 79 a.u. or 0.674 eV, which is greater than the binding energy per atom of 0.453 eV for Li2, the binding energy per atom of 0.494 eV for Li3 and the binding energy per atom of 0.632 eV for Li5 calculated previously by us. This means that the Li7 cluster may be formed stably in a body-centred regular octahedral structure with a greater binding energy.

Formation Mechanism and Binding Energy for Body-Centred Regular Tetrahedral Structure of Li5

The formation mechanism for the body-centred regular tetrahedral structure of Li5 cluster is proposed. The curve of the total energy versus the separation R between the nucleus at the centre and nuclei at the apexes for this structure of Li5 has been calculated by using the method of Gou＇s modified arrangement channel quantum mechanics （MACQM）, The result shows that the curve has a minimal energy of-37.2562 a.u. at R =14.5α0. When R approaches infinity the total energy of five lithium atoms has the value of-37.1401 a.u. So the binding energy of Li5 with respect to five lithium atoms is the difference of 0.1161 a.u. for the above two energy values. Therefore the binding energy per atom for Li5 is 0.023 22 a.u., or 0.632 eV, which is greater than the binding energy per atom of 0.453 eV for Li2 and the binding energy per atom of 0.494 eV for Li3 calculated previously by us. This means that the Li3 cluster may be formed stably in a body-centred regular tetrahedral structure with a greater binding energy.

Radial Orientation Mechanism and Experimental Research of Short Fiber in Tread Compound

Combining with Jeffery ：quation and mechanics model of fixed point of Euler rigid btdy, the mechanism and method of short fiber radial orientrion and characteristics of movement in tread extrusion process were studied. The influences of tension flow field and shear flow field in flow channel on short fiber orientation trove been systemically analyzed. The extrusion die, which had a hinder dam by adopting such principle, was designed. The results show that the expansion ratio and expanding angle of cross section are the key factors to determine the radial orientation of short fiber. Mathematical model of short fiber radial orientation was established. The results also show that the best expansion ratio is 3 - 4, the expanding angle is 75°, obtaining the average orientation angle between 70°- 80°, and the rationality of the radial oriented mechanism and the mathematical model are verified.

Relationship between interfacial structure and property of steel-mushy Al-28Pb bonding pate

The interfacial properties of steel-mushy Al-28Pb bonding plate with different interfacial structures, and the influence of ratio of Fe-Al compound at the interface on interfacial shear strength were investigated. The results show that there is a nonlinear relationship between the ratio of Fe-Al compound at the interface and the interfacial shear strength. When the ratio of Fe-Al compound at the interface is smaller than 71.4%, with the increase of the ratio of Fe-Al compound at the interface, the interfacial shear strength increases gradually; when the ratio of Fe-Al compound at the interface is larger than 71.4%, with the increase of the ratio of Fe-Al compound at the interface, the interfacial shear strength decreases continuously; when the ratio of Fe-Al compound at the interface is 71.4%, the largest interfacial shear strength 70.2MPa is obtained.