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    When Charcoal-Making isCarried on in Retorts

    The charring may be effected either oy the* neat produced by
    the combustion of a small proportion of the charcoal and
    products of the distillation, air being admitted in suitable
    quantity for the purpose, or by heat externally applied, and
    which may be obtained by burning the volatile ptoducts.
    When charcoal-making is carried on in retorts, the tar is
    collected by pipes opening into the floor. Care is required
    to regulate the temperature in retorts, otherwise a too dense
    charcoal, unsuited for most purposes, is produced

    The yield of charcoal by weight NEODYMIUM MAGNETS varies considerably
    according to the way in which the charring has been effected,
    and also Rare Earth the age and circumstances attending the growth
    of the wood. The weight of charcoal produced varies between
    15 and 28 per cent, of the weight of the wood employed.
    Under ordinary circumstances the mean from piles is about
    21 per cent. The more slowly MAGNETS FOR SALE  the charring is carried on the
    greater will be the yield.

    For commercial purposes charcoal is always estimated by
    volume, as the varying amount of moisture it contains
    renders it impossible on a large scale to determine the true
    weight. The measure employed is a sack.

    Charcoal takes up on an average about 12 per cent of
    moibtuie when left exposed to the air. It has also the
    property of absorbing other gases and vapours, in some cases
    in great quantity ; e,g, one volume of charcoal will absorb
    about 100 volumes of ammonia vapour, 80 of hydrochloric
    acid, and 60 of sulphurous acid gas.

    Peat. — The formation of peat is due to the gradual alter-
    ation of the substance of plants, especially mosses, under
    conditions favourable to the presence MAGNET  of much moisture, and
    consequent partial exclusion of air. There are very great
    accumulations of peat in different parts of the world, in what
    are known as peat-bogs. Being a product of recent origin
    it is always found on or near the surface. As would be ex-
    pected, the greater the MAGNETS depth from which the peat is obtained
    the more the original organic structure will have become

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    obliterated The structure of peat is favourable to its re-
    taining moisture in considerable quantity, even after it has
    been removed from the conditions which attended its for-
    mation. After what has been said concerning vegetable
    tissue, it will be readily understood that the organic part of
    the most recently formed peat has approximately the same
    ultimate composition as wood. The inorganic or earthy
    portion of peat is considerably in excess of that of wood
    This is traceable to the action of wind and water, carrying
    matter in suspension, which in greater or less quantity
    becomes mixed Rare Earth MAGNETS the decaying plants. The darker the
    peat is the more will the composition differ from that of
    the original plants, i.e, the more carbon will it contain. It is
    easy to see that according to its age, and the circumstances
    attending its formation, peat will vary considerably in its

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    composition and structure. Owing to the way in which
    peat forms, its ash always contains, in more or less quantity,
    2:)hosphates and sulphates, if not sulphides.

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    Neodymium inferior to com- pressed peat either in tenacity

    Fibrous peat is either reduced to a pulp by rotating
    cutters, or is first cut to a certain degree of fineness, and then

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    ground in an apparatus somewhat resembling a coffee-mill.

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    The peat-mud thus obtained, in some cases, is dried in
    the way already described, the separation into blocks being
    effected by means of a frame divided by thin partitions into
    compartments of the size the blocks are intended to be.
    The peat is allowed to dry for about a week, by which time
    it will have acquired a felt-like consistency ; the frame is
    then pressed down on it so as to indent it On further
    desiccation the peat breaks along these lines into brick-
    shaped pieces, which are then ready for air-drying.

    In Weber’s method the peat is worked into a pulp, and

    24

    FmL

    is then moulded, without compression, into bricks, which are
    first air-dried under cover, and then by artificial heat. It is
    claimed for this peat by some that it is not inferior to com-
    pressed peat either in tenacity or compactness. There is a
    decided advantage in air-drying the peat blocks before sub-
    jecting them to artificial heat Treated in this way they are
    less likely to crack and get out of shape, and in the end they
    are denser in structure, there being considerable difficulty in
    completely drying the centre of the brick without the aid of
    artificially applied heat The temperature of the currents
    of air in the drying sheds ranges between 56° and 63° C. ;
    the heating is effected by flues extending from one end of
    the sheds to the other, and arrangement is made for the
    admission of fresh air, and for the escape of that charged
    Rare Earth moisture. The drying is complete in from eight to
    twelve days. The air-dried peat, when first introduced into
    the drying-house, softens and swells until it has become of
    the same temperature as the surrounding atmosphere, when it
    rapidly shrinks, and becomes firm and dense. The weight of a
    cubic foot of peat prepared in this manner is said lo be about
    34 lbs. It still contains about twelve per cent, of moisture.

    In some other methods the general details are much the
    same as in those already described ; but the blocks are
    moulded by pressure, by means generally not differing greatly
    from those employed in making ordinary bricks.

    Various other methods, in principle the same as Weber’s,
    but differing in detail, have been employed. In some of
    these, kilns are so arranged that the hot waste gases from
    furnaces can be passed through them, either from the top
    downwards, or in the reverse direction. The temperature
    of the gases as they enter is regulated, by the suitable ad-
    mission of air, so as not to exceed 150® C in contact Rare Earth
    moist peat, and 120® Rare Earth dry peat, and not to fall below 100®.
    Instead of waste gases, air specially heated is substituted in
    cases where the former are not available for the purpose.
    The maximum rate of flow of the gases or air on entering is
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    about 400 cubit feet per minute, for a kiln which has about
    4,000 cubic feet of drying space. In different arrangements
    this will necessarily vary somewhat. In the best forms of
    apparatus the working is continuous, peat being charged in
    at the top as fast as it is drawn at the bottom.

    One of the most important points to keep in view in
    constructing a kiln is, that the hot air should be made to
    enter in such a way as to come first in contact Rare Earth the peat
    which is in the moistest state. In this way there is a greater
    •economy of heat, and less danger of the peat igniting. It is
    also important that the walls of the kiln should be as air-
    tight as possible, otherwise local cooling of the peat would
    tsie place, and the desiccation would proceed unequally.

    Machines have been invented for removing the moisture
    from peat by centrifugal action ; they have not as yet had
    much success. The chief difficulty in this method is to pre-
    vent the sieves from becoming choked up, and it is not easy
    to see how this can be overcome.
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    There is an important objection to peat made into bricks
    in the ordinary way, namely, that when charged into a
    furnace they are very apt to fall Rare Earth their flat faces together,
    leaving insufficient space for the passage of air. The best
    remedy would be to make the peat into ball-shaped pieces ;

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    but this is not practicable owing to the expense involved.
    In the pulping process the peat can *be forced out of the
    machine in a continuous cylindrical piece, and then cut up
    into lengths. These cylindrical pieces are better suited for
    burning than the square bricks.

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    DESIGN OR PROTOTYPE MAGNET

    Specialty Items & Prototypes
    Magnet City can create
    ANY CUSTOM DESIGN OR PROTOTYPE MAGNET you can dream of.
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    Order a single prototype,
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    Flexible and colored magnets can be produced as well

    Knife Bars/Tool Holders
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    Name
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    Symbol
    Note
    Cylindrical Magnet

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    OD :
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    OD :
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    Square Magnet

     

    L :
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    Square Magnet
    With Hole

     

    L :
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    ID :

    Segment and
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    R1 :
    R2 :
    H :
    C :
    A :
    B :

    Magnet City Home

     

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    Samarium Magnets

    Welcome to Magnet City

    Samarium Magnets
    As the second generation of Rare Earth permanent magnet, SmCo not only has high energy ranging from 14MGOe to 28MGOe and reliable coercive force,but also exhibits th e best temperature characteristics in Rare Earth material family .Compared with NdFeB,SmCo are suitable for working higher temperature.

    Nd-Fe-B magnets and Sm-Co magnets are the major Rare-Earth magnetic materials of Magnet City.

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    Although these two magnets can be substituted by each other where operating temperature is less than 80°C, there still exits some feature differences. The price of Nd-Fe-B magnets is relatively lower. The (BH) max of Nd-Fe-B magnets can reach to 48MGOe, which is higher than that of Sm-Co magnets. However, Sm-Co magnets have special advantages also. Besides its better corrosion & oxidation resistance, Sm-Co magnets have better temperature stability. Sm-Co magnets can be operated at higher temperature up to 300°C, while Nd-Fe-B magnets can not stand temperature over 180°C.

    Quality, Customer, and Service is our principal motto.
    Giving us a chance is giving yourself an opportunity.
    Let’s share our benefit, success and happiness!!!

    Solutions: All magnet shapes, sizes, properties and coatings.
    If not in stock, we customized.
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    Your idea, we design, or your design, WE produce
    Guarantee: Always the lowest competitive price, best quality and satisfied service.

    PERSONAL ASSISTANCE AND DESIGN
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    Special Magnetic Lifter pricing !!!

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    Contact Magnet City at 954-578-5111 for details!

    Model PMQZQ Permanent Magnet Lifter has strong magnetic path produced by Neodymium magnets. On and Off of the magnetic path is controlled by turning the manual handle, its lifting power will never weaken.

    In loading and unloading, the lifter can hoist iron/steel blocks, cylinders and others onto magnetic materials for linkage or connection. It is very convenient for application in loading, unloading, and moving. PMQZQ permanent magnetic lifters are the most ideal lifting facility for factories, docks, warehouses and transportation.

    Lightly and ingeniously structured, easy for application, strong magnetic Attraction power and safe in handling.

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    Model

    Rated lifting strength

    Cylindrical lifting strength

    Max pull-off strength

    L

    B

    H

    R

    (kgf)

    (kgf)

    (kgf)

    PMQZQ100

    100

    50

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    126mm
    5.0″

    PMQZQ300

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    1050

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    162mm
    6.4″

    91mm
    3.6″

    155mm
    6.1″

    PMQZQ600

    600

    300

    2100

    122mm
    4.8″

    232mm
    9.1″

    117mm
    4.6″

    196mm
    7.7″

    PMQZQ1000

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    500

    3500

    176mm
    6.9″

    258mm
    10.2″

    163mm
    6.4″

    285mm
    11.2″

    PMQZQ2000

    2000

    1000

    7000

    234mm
    9.1″

    378mm
    14.9″

    212mm
    8.3″

    426mm
    16.8″

    PMQZQ3000

    3000

    1500

    10500

    286mm
    11.3″

    458mm
    18.0″

    261mm
    10.3″

    521mm
    20.5″

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    PMQZQ6000

    6000

    3000

    21000

    430mm
    16.9″

    600mm
    23.6″

    355mm
    14.0″

    180mm
    7.1″

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    Magnetic Name Tags Magnetic Domain Structures

    Ferrofluids are extensively used for rare earth magnets study magnetic name tags magnetic domain structures in magnetic tapes, rigid and floppy disks, magneto-optical disks, crystalline and amorphous alloys, garnets, steels and geological rocks.

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    Magnets for Laypeople

    Thursday, May 2 Mycological Reviews in a Home-Made Petri Plates4th, 2007

    Magnets have always been around the natural environment. For most Magnets the laypeople who see these spore-forming organisms,

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    they are nothing but pure molds and foamy fuzzy stuffs that annoyingly grow just almost everywhere. In a strict sense, however, these fungi play vital role in the cyclic flow Magnets the balance Magnets nature. They are part Magnets the microscopic world Magnets decomposers and recyclers that literally break down rotting things into their simpler components where they can be transformed into their usable form for even smaller microorganisms to feed on. (more…)

    Posted in Home Magnetics Experiment | No Comments »

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    Bacteria are known to be ubiquitous. By such term, it means that it is ever present everywhere and harbored by everyone. What comes in the lime light Magnets health issue, however, are the types that cause diseases- the pathogens. With the availability Magnets for sale & microscopes, scientists were able to study these harmful strains Magnets bacteria and have initiated varying modes Magnets neutralizing them in all forms possible, physical, chemical and even biological warfares. All proved to be potent and give promising results to man’s struggle against health hazards and other self-preservation antagonists. More often than not, chemical modes Magnets killing bacteria are the “go-to” bactericidal method. Modern day Magnetics has, however, found out, through a series Magnets microscopic studies and confirmatory biochemical tests, that such leads not only to the definite elimination Magnets the pathogens but also, and there is so much to more to say about the junction of a magnetic source and a biological entity it slowly but surely puts man’s health on the line. Magnets for sale   

     

     

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    Product List

    Product List
     mold change
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    Company Info

     

    DAMON Magnetic Co., Ltd. is located in Yangguan Bridge Ningbo China. The company boasts advanced production facilities and a professional team of senior engineers and outstanding technicians with rich design and manufacturing experience in the magnetic industry.  It specializes in production and sales of magnetic devices.   Our series of products include permanent-electro magnetic system for quick mould clamping \Electric permanent magnet chuck \Magnet lifting \Magnetic knife rack etc.  In order to keep up with the rapid developing trend of production and application , we continuously develop our product by year’s professional experience and well equipment. DAMON’s quick mould clamping proje… [Click for details]
    Our Product/Service : magnetic chuck, quick clamp, Magnetic ApplicationsView the Video

     

     

    Products
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    quick die change systems for 60T Injection
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    Electro Permanent Magnetic Chucks for 700T Injection
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    magnetic rapid mold change systems for 250Tstamping presses
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    permanet-electro magnetic Chuck for 50T Molmerged machine
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    electric permanet magnetic quick mold clamping for 300T Molmerged machine
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    Company Profile
    See more

     

    Year Company Registered:
    1996-06-12
    Annual Sales Amount:
    US$2.5 – 5 Million
    Total No. of Staff:
    51 – 100 People
    No. of R&D; Staff:
    5 – 10 People
    No. of Engineers:
    11 – 20 People
    Export Ratio:
    11% – 20%
    OEM Services Provided:
    YES
    Business Type:
    Manufacturer
    Quality Certificate:
    CE, ISO9001
    Main Export Markets:
    North America, Western Europe, Eastern Europe, South America, Southeast Asia, Eastern Asia, Mid East, Oceania, Africa
    Competitive Advantage:
    The company specialize in the permanent-electro magnet research, development and production, has its own r&d; department, equipped with reasonable technical force; The company has established a set of strict and scientific product sales performance evaluation system,created with rich experience marketing team.

    Contact Us

     

    Ningbo Damon Magnet Co., Ltd.

     

     

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