• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to methods for preparing a suspension of solid lubricants for the hot treatment of metals without removing chips, and makes it possible to obtain a homogeneous and stable suspension immediately prior to its use without the addition of bactericides and with a minimum content of suspending agents. According to the method, the components with water are pretreated in a colloid mill by passing through a gap with a width of 0.01-3 mm with a circumferential speed of rotation of the mill rotor 10-40 m / s, preferably 15-20 m / s, for 0.01-5, 0 s. Immediately thereafter, the resulting pre-mixture is further intensively mixed for 60-3000 seconds, preferably 150-300 seconds, until a suspension with a solids content of 1-70% by weight is obtained. 2 hp f-ly, 1 ill., 5 tab.
    公开号:SU1498378A3
    申请号:SU864028344
    申请日:1986-10-01
    公开日:1989-07-30
    发明作者:Штауб Ганс-Рудольф；Фуррер Гансерг
    申请人:Лонца Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method for preparing a suspension of solid lubricant materials used in the process of hot working metals without chip removal and containing graphite and polymers in water as a carrier fluid.
    The purpose of the invention is to obtain a homogeneous and stable suspension immediately before its use without the addition of bactericides and with a minimum content of suspending agents.
    The drawing shows an installation in which the proposed method is implemented.
    The method of preparing a suspension of solid lubricants is as follows.
    The dry components of the solid lubricant are pre-biased, and then fed from bunker 1 to colloid mill 2, where they are processed together with water coming through conduit 3 by passing through gap 4 with a width of 0.01–3 mm at a circumferential speed of rotation of the rotor 5 of mill 10 -40 m / s, preferably 15-20 m / s, for 0.01-5 Co Immediately after this, the obtained preliminary mixture is supplied from the outlet 6 of the colloid mill through the flexible pipe 7 to the mixer 8 of the cascade type, where it is subjected to the worst intensive displacement within 60 - 3000 s, preferably 150-300 s,
    4: CO CX) CO
    oo

    and
    3149
    to I1 Lt 1eii Lvesi with a holding of M) 1: gd M e etstseva 1-7P wt,%. The mixture is then fed to a bunker 9 equipped with an uronnemer, which, depending on fire vpi BUH, switches the installation on and off with. By dry components, subjected to preliminary mixing — o., A mixture of graphite, popemer and possible additives, for example suspending agents, is captured. - costabilizers, possibly wetters and inorganic doy woks To water n, o its tegerer. Drops in pzpes also also add such additives as wetting agents, solvents, film-absorbers, stabilizers; pli values; Alkaline inorganic salts (purimer, phosphates) and so on, e. According to another embodiment, water containing Described additives, for example, suspending agents, wetting agents or solvents, etc. To be mixed with the polymer in advance, for example, in the form of a polymer dispersion in This mixture is supplied to the county mill together with the graph TG1M, TCHOtorig: ce to homogeneity of the mixture, iii ii g of suspending agents, film KG1S of g-, etc., etc.
    i. In the best way to get a ii,:: - iiirii with a solid-iiinrTi content of .1 G within 1 to 70 masD. Dos and: -: (- l about j aKHX of current contents .r: - peschlcht-tpa in suspension reaches- with., That separate components.; Neij / or - cMafibiBaioDiero of the equipment have - (MMjb;, i low weight , Lp grgm; m hl Oil is 0.2 - 0.5 kg / l for; (rrcTHNfepa and additives 0.2 - 0.7 kg / l l, l;; lump of dry mixture 0.2 - P, 5 k. / J, So, I ol uch et c, which already has a mass of 25 wt% solid cg L iiioro material larger than 71e volume: th, t, () 1 o for the preparation of the display space „
    (; rtoMorej.io of a colloid mill according to the proposed method, it is possible to prevent clumping of solid neiTieu rnc. The residence time of the p soHt components of the smear of colloidal chalk iHHiu is 0.01 - 5 s (However, the stability of the thus obtained weight is limited and the amount of time) If solid substances are rapidly precipitated in them. If the preliminary preparation is subjected to further treatment, then by intensive mixing, 11 cmg: ..; and 1 body in compliance with the time
    if the suspension stays in the mixer within 60 - 300 s, preferably 150 - 300 s, then you get stable ready-made 7 stars
    Suitable intensive mixers are the mixers, have at least one rotating shaft of the agitator blade in one direction or rotate the shaft of the agitator blades in the opposite direction, ball mills with a mixer, jet or screw mixers, preferably of cascade type. In the case of separate components, t , ei solid lubricant and water, are mixed in one intensive mixing mixer with a suspension of solid lubricant, cannot be prevented or eliminated the process of lumping and over: teaching of heterogeneous suspension Only thanks to the subsequent inclusion of a colloid mill and an intensive mixing mixer, it is possible to prepare a homogeneous, completely lump-free suspension of solids from a carrier fluid and, as far as possible, transferred to a convenient for processing form. The suspension obtained in this way does not contain lumps and, based on the type and amount of suspending agent, is much more stable, it is deposited e solids occur over a longer period of time than would be possible if mixed and suspended using only one of the successive mixers included according to the proposed method. The raw materials used are one solid lubricant, preferably graphite, in particular high-purity graphite For example, weigh 90%, with an average grain size of not more than 300 µm. The best results are obtained when using graphite with a purity of 96-99.5% and with an average grain size of molecular weight 100 microns in some cases possible to use molybdenum disulfide, CaF m. or BN alone or in admixture with graphite
    By polsher are meant organic products that decompose under the action of heat without the formation of
    residues, for example, homopolymers or copolymers of alkylene These include homopolymers and copolymers Alkeya new (monoolefins, diolefins and t "d,) vinyl esters, vinilovgh alcohols, unsaturated dibasic acids and their esters (dicarboxylic acids and their esters), alkyl esters, acyclic acids and their esters “Alkylene homopolymer or copolymer can be polyethylene, polymethyl methacrylate, polystyrene, polybutadiene, polyvinyl acetate, polyvinyl propionate, methyl methacrylate copolymer with styrene, methyl methacrylate copolymer alpha-methylstyrene, pr-di-allyl phthalate, polypropylene, styrene-butadiene copolymer, polymethyl methacrylate, copolymer of vinyl acetate with di-butyl-methylF at that, vinyl / acetate copolymer with ethylene, polyisobutylene, polyisobutylene, polymethylamine, vinyl acetate / ethylene copolymer, polyisobutylene, polyisobutylene, polymethylamine, vinyl acetate / ethylene copolymer with ethylene, polyisobutylene, polyisobutylene copolymer, sodium polymethyl methacrylate dry state, or as a dispersion, if suitable.
    As suspending agents, for example, substances from the group including polysaccharides such as starch, cellulose, inulin, glycogen, agar, lenan, dichionic pectin, lignin, arabane, and also alkylcellulose, for example methyl, ethyl, propyl, butyl cellulose, or alginate, for example sodium, potassium, propylene glycol and ammonium alginates, or mixtures of such substances. A solid lubricant should be applied in the form of a homogeneous aqueous dispersion (l - 70% by weight) and with a viscosity of 100-3000 centipoise at 5 - 50 ° C Dp to ensure the required viscosity of the dispersion in some cases, the organic stabilizer contained in the solid lubricant material. However, it is possible to adjust the viscosity with a thickener or a mixture of thickeners. Suitable thickeners are, for example, water-soluble polysaccharides, alkyl cel lulose, polyvinyl alcohols, polyacrylates, polyvinylpyrrolidone, in some cases and inorganic substances, in particular minerals, for example clays or silicic acid
    In addition, it is also possible to use inorganic additives selected from a variety of sorptive compounds, polyphosphates, and alkali silicates.
    tal and applied as such or mixed with each other. These compounds include polyphosphates in a non-soluble or sparingly soluble form. KairecTB polyphosphates preferably use Madreleva or Curorol soloes. These are compounds of the type (NaPOj) n, where n is 6 to 50,000, preferably 6 to 10000 o Boron compound is used soluble, but preferably in a sparingly soluble or insoluble form, can be used as a boron compound
    for example, borax, boric acid,, KBjOg or zinc borate. The preferred alkali metal silicate is sodium silicate 11pium potassium silicate containing
    by SiO., within 21-47%. For
    providing wetting of the powdered mixture of solid lubricant can be added to the mixture and / or to the water wetting agent. Examples of such wetting agents are alkyl aryl sulfonates, fatty acid amines, fatty acid soaps, substituted amide phosphate amides, sulfonated esters of dicarboxylic acids, sulfonated amine sulfides, sulfonated amides, sulfonated esters of dicarboxylic acids, sulfonated amine sulfides. acids, alkylamines, sodium alkyl sulfates, aliphatic amine esters, polyethers, for example, polyoxyethylene and polyoxypropylene, sulfonated higher phenols or naphthalenesulfonate
    Suspended solid lubricants obtained according to the proposed method may contain, for example, as a solid 1 90 mCo% solid lubricant, preferably graphite, 1 to 50 wt% polymer, 1 to 80 mass% inorganic additive, and 0.2 to 80 mCO % organic stabilizer. Water carrier is used as a carrier fluid, and water additives such as wetting agents, solvents such as alcohols, esters, ketones or aldehydes are included. Such water additives may be necessary for fast solid lubricant, it is very difficult to wet graphite, in a suspended state or
    for example, to initiate a rapid dissolution or swelling of the polymer component.
    Solid lubricants are suitable for use.
    as a high-temperature (300 - 300 ° C) lubricant, for example, for lubricating a tool, such as a mandrel, rod or die, and blanks, for example sleeves or pipes, for thermomechanical processing of blanks on tube-rolling mills from 6 to 8 cells mi, on continuous rolling mills and mills, on rolling mills of the type of maritime, studs, in processes for pressing rods or forging presses, on section rolling and sheet rolling mills, iron and steel products are preferably processed.
    The slurry obtained according to the inventive method is applied to a hot billet or hot tool, t, by roller, by brushing or preferably by spraying, with the carrier fluid, in this case water, and possible volatile additives being evaporated, leaving a built-up waterproof, containing a graphite polymer film. The water resistance of the latter is necessary in order to be able, if necessary, to cool the surface coated with a single layer with a snoot material;
    An important 1m property of a solid lubricant is its film-C1 T a common property. The last pro- nlpeps, even before the use of grease P1 yr-duster of the workpiece or tool; oiIta, t (.Go already during the process of slurry, specifically speaking, already;: in the case of mutual contact of solids. when contacting polymers with water. Thanks to the following method, mixing of a TiT such an extremely difficult eitiecTBO wetted, such as graphite, with a polymer that exhibits a strong film-forming property that reaches the stickiness of the polymer, and the resulting film should be water - with 1 optics, without lumps and from Hiner-i homogeneous state, Yaatrud-teppelr. In the proposed method, L) 1ts still the fact that the volume of solids due to their low gross weight can exceed the amount of water i oecii based on the amount of additive suspending agents must be extremely stable, i.e., over long periods of time, it must
    Q 5
    0 5 0
    five
    d ..
    five
    To decompose into individual components and to precipitate
    Example 1 In a device containing a colloid mill and an intensive mixing mixer, cyxoii processes the lubricant and water into a suspension of lubricant. The maximum drive power of the colloid mill is 5.5 kW and the gap width is 1 mm. The rotary speed is set at 15 m / s. A cascade type mixer with an agitator mounted on a shaft is used as an intensive mixing mixer. Power is 3 kW maximum, the average rotation speed of the mixer shaft is 1000 rpm, and the mixing chamber diameter is 16 cm Both mixers are a single device drive, with the outlet of the colloidal melpine directly entering the intensive mixing mixer.
    3.5 l / min of water and 1.5 kg / min of pre-mixed lubricant components are supplied, containing 74.3 mAco% graphite, 23.3 wt.% Polymer and 7., 4 wt.% Auxiliary agents o In accordance with By feeding the material, the residence time of the mixture in a colloid mill is 2 seconds and in the 80-in. intensive mixing mixer.
    In order (puppies collected on the release of an intensive mixing mixer, a sample (l) of the suspension (solids content of 30%) is fed into the cylinders and its behavior is observed when settling. For comparison, a sample is prepared (2) so that the suspension is collected at the colloid release mills The sample (G) is prepared so that water and lubricant components in equal quantitative proportions are passed only through an intensive mixing mixer. In the case of samples (2) and (G), the same basic installation of individual devices is chosen as for the sample. (l) (see tab.1).
    Example 2 In a device containing a colloid mill and an intensive mixing mixer, the dry lubricant and water are processed into a slurry of lubricant. The maximum drive power of a colloid mill is 5.5 kW and the gap width is 0.01 mm.
    A circumferential flow rate is set at 15 m / Co. A cascade type mixer with an agitator mounted on a shaft is used as a mixing intensity mixer. The power is up to a maximum of 3 kW, the average rotation speed of the mixer shaft is 1000 rpm, and the mixing chamber diameter is 16 cMo. Both mixers are a single unit of the device, with the outlet of the colloid mill directly entering the intensive mixing mixer. 3.5 l / min of water and 1.5 kg / min of pre-mixed lubricant components are supplied, containing 74.3 graphite, 23.3 mass% polymer and 2.4 May.7-auxiliary means. In accordance with the flow of material, time the mixture stays in a colloid mill for 2 s and 80 s in the intensive mixing mixer. For the purpose of evaluation, a sample collected from the intensive mixing mixer (l) suspension (content of solid matter 30%) is fed into the cylinders and its behavior is observed for settling. comparisons prepare sample (2) so that
    the slurry is collected at the outlet of the colloid mill. Sample (G) is prepared so that water and lubricant components in equal proportions are passed only through an intensive mixing mixer. In the case of samples (2) and (G), the same basic installation of individual instruments is chosen as for the sample (O (Table 2) o
    Example The device, which contains mainly a colloid mill and an intensive mixing mixer, processes the dry lubricant and water into a lubricant suspension. The maximum drive power of the colloid mill is 5.5 kW and the gap width is 3 mm. The circumferential rotor speed is set at 20 m / with"
    A cascade type mixer with an agitator mounted on a shaft is used as an intensive mixing mixer. The power is maximum 3 kW, the average rotation speed of the agitator shaft is 1000 rpm, and the mixing chamber diameter is 16 cm. Both mixers are one unit of the device, with the outlet 10
    15
    20
    25
    thirty
    35
    40
    45
    50
    55
    The aperture of the colloidal smlnitsy directly enters the input of the mixer of intensive mixing.
    3.5 liters / min of water and 1.5 kg / min of pre-mixed lubricant components are supplied, containing 74.3 wt.% Graphite, 23.3 wt.% Polymer and 2.4 wt.% Auxiliary agents 5 In accordance with the supply of the material, the residence time of the mixture in a colloid mill is 2 seconds and in the intensive mixing mixer 80 seconds.
    In order to assess the intensive mixing sample collected at the mixer release (l), the suspension (solids content 30%) is fed into the cylinders and its behavior is observed when settling. For comparison, the sample is prepared (2) so that the slurry is collected at the colloid mill output . Sample (G) is prepared so that water and lubricant components in equal quantitative proportions are passed only through an intensive mixing mixer. In the case of samples (2) and (G), the same basic installation of individual instruments is selected as for sample (l) (tdbl.C).
    Example 4. In a device containing mainly a colloid mill and an intensive mixing mixer, the dry lubricant and water are processed into a slurry of lubricant.
    The maximum drive power of a colloid mill is 5.5 kW, and a gap width of 2 mM o rotor speed is set at 10 m / s. A cascade type mixer with an agitator mounted on a shaft is used as an intensive mixing mixer. The power is maximum 3 kW, the average rotation speed of the mixer shaft is 1000 rpm, and the mixing chamber diameter is 16 CMO Both mixers are a single unit of the device, with the opening of the colloid mill directly entering the intensive mixing mixer.
    3.5 L / min of water and 35 g / min of pre-mixed lubricant components containing 74.3% by weight of graphite are supplied.
     5, May, l of polymer and 2.4 wt.% Of auxiliary agents. Corresponding to the pin with the supply of material, the survival time of the mixture and the mixture in the colloid mill is 0.1 siv of the intensive mixing mixer for 60 seconds.
    In order to assess the collected on the release of the mixer of intensive mixing, the sample (l) of the suspension (solids content of 1%) is added to the cylinders and its behavior during settling is observed. Bottom of the comparison, a sample is prepared (2), so that the slurry is collected further at the release of the colloidal chalk. Sample (G) is prepared so that water and lubricant components in equal quantitative ratios pass only through an intensive mixing mixer), R the case of samples (2) and (G) is 1P-. the same basic installation of individual instruments as for sample (1) (Table 4).
    PRI me R 5 "In the device, the co ne. I sauu; M is mainly a colloidal melppe and a mixer of intensive mixing and drying (it has a dry lubricant, r: vi ri. Ti epnaji and water in a lubricant -
    NR: - 1, l rPi-Ii, l.irri,
    . i.n -. (ppkshtnl drive power (the idle mill is) kIT, the gap width is 2 mm. Surround; on; chorost)
    g :, id m / s.
    i l quality as a mixer, intensive-) omeg1: lacquers put on a mixer with a mixer, mounted on the shaft. Power is m-tximu; -} i idiT, average speed, eirn; i} 1a.ch stirrers 1000 rpm, and li. The meter of lubrication chamber 16 cm n; -, h of the mixer represent f , n, i 4Mi i took into account the ycTpoiicTBa, and the outlet of the colloid mill ijhi is not direct ;; ds enters into the input of the cr-hesich e,; t intensive mixing
     lonaior 1.0 l / min of water and 1,: K / m P pre-mixed lubricant KiiMn () i iiTOJ, go ,,:.: it’s 74.3 maCoA graphite, 23,; i; ic, A polyM; fa and 2.4% by mass of auxiliaries (r; ri4: .n-. means. In accordance with пpd.a 1n material, the residence time is 1П1М–; T for the colloid mill sos-:; n; l: and i.) with and in the mixer; 1 meg:; u1: api 1000 s
    Q 5 0
    five
    ABOUT
    five
    Q 5
    0
    five
    In order to see the samples collected on the release of an intensive mixing mixer, the sample (l) of the suspension (solids content 70%) is fed into the cylinders and its behavior is observed when settling about the Comparison Day. Sample (2) is prepared so that the suspension is collected at the release of the colloid mill. The sample (G) is prepared so that water and lubricant components in equal amounts of quality are passed only through an intensive mixing mixer. In the case of samples (2) and (G), the same basic installation of individual instruments is selected. what k for pr to (O (tabLoZ)
    EXAMPLE 6: Further experience is given in which 3.5 l / min of water and 35 r / NfUH of lubricant of example 1 are fed into the device according to example 1
    The peripheral speed of the rotor is set at 40 m / s. The remaining parameters correspond to the parameters given in example 1 o In accordance with the material feed, the time in the colloid mill is 0.01 cm of the intensive mixing mixer 60 Co. In the case of this sample, the same settling behavior is observed as in the sample (O one .
    EXAMPLE 7 A further experiment was carried out in which 3.5 l / min of water and 1.5 kg / min of lubricant of example 1 were fed into the device according to example 1.
    The peripheral speed of the rotor is set at 10 m / s. The remaining parameters correspond to the parameters given in example 1. The residence time in a colloid mill is 5 seconds and in the intensive mixing mixer 150 seconds. In the case of this sample, the same behavior is observed for assertion as for sample (1) in Example 1
    For example, a further experiment is carried out in which 3.5 l / min of water and 1.6 g / min of lubricant in example 1 are supplied to the device according to example 1. The rotor’s peripheral speed is set at 30 m / s. in a colloid mill, it is 2 seconds and in an intensive mixer, 300 seconds.
    13M
    In the case of this sample, the same settling behavior is observed as for the sample (O in Example 1
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    1 o A method of preparing a suspension, solid lubricants for hot processing of metals without removing chips, containing graphite and polymers in the number of dry components and water as a liquid medium, characterized in that, in order to obtain a homogeneous and stable suspension immediately before its use without the addition of bact.ricides and with a minimum content of suspending agents, the components are pretreated with water in a colloid mill by skipping

    14
    nor through a gap of 0.01–3 mm wide at a peripheral speed of rotation of the rotor of the mill 10–40 m / s, preferably 15–20 m / s, for 0.01–5 s, then immediately after this the obtained preliminary mixture is subjected to further intense mixing for 60-3000 seconds, preferably 150-300 seconds, until a suspension with a solids content of 1-70% by weight is obtained.
    [2]
    2. Method POP.1, characterized in that the dry components of a solid lubricant are pre-smoked before being fed into a colloid mill.
    Method Pop, 1, characterized in that the polymer is premixed with water before being fed into a colloid mill
    Table 1
    there is
    - Not homogeneous
    There is homogenous
    Homogenous first
    Almost complete
    upholding - separation
    Homogenous First Settling
    15
    Yes - Homogenous
    There is homogeneous
    Gom
    (3) comparison
    the knowledge
    There is a homogeneous-not the first
    1498378
    16 Tavlitsa
    TableA
    but
    Homogeneous
    Almost complete separation first resignation
    Table 3
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    同族专利:
    公开号 | 公开日
    CS261247B2|1989-01-12|
    PL261617A1|1987-12-28|
    ES2020173B3|1991-08-01|
    DE3677127D1|1991-02-28|
    AT60249T|1991-02-15|
    US4735734A|1988-04-05|
    CA1272181A|1990-07-31|
    DD249858A5|1987-09-23|
    EP0218989A3|1989-04-26|
    EP0218989A2|1987-04-22|
    CS706186A2|1988-04-15|
    CN1006400B|1990-01-10|
    EP0218989B1|1991-01-23|
    CN86106627A|1987-04-01|
    JPS6291229A|1987-04-25|
    CH665847A5|1988-06-15|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH4249/85A|CH665847A5|1985-10-02|1985-10-02|METHOD FOR SUSPENDING SOLID LUBRICANTS.|
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