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200 条记录 (耗时 0.014 秒)

    Internal mold gating method and apparatus
    71.
    发明授权
    Internal mold gating method and apparatus 失效
    内模门控方法及装置

    公开(公告)号：US4468363A

    公开(公告)日：1984-08-28

    申请号：US463104

    申请日：1983-02-02

    申请人： James D. Miessler

    发明人： James D. Miessler

    IPC分类号： B29C44/38 ,  B29C70/58 ,  B29C70/66 ,  B29J5/00

    CPC分类号： B29C44/386 ,  B29C70/58 ,  B29C70/66 ,  B29K2105/046 ,  B29K2105/16 ,  B29K2105/165 ,  Y10S264/06

    摘要： A process and apparatus for the internal gating of molds used to make a shaped article of aggregate filler infiltrated with a curable binder, including preparing a mold having a cavity and having gating tubes extending through the mold cavity and spaced from its surfaces, and the gating tubes having walls with multiple openings therethrough which are located inside the mold cavity, the cavity being dry-packed outside of the tubes with aggregate filler and the interstitial spaces therebetween being pumped full of liquid binder to form a matrix, the binder entering through the tubes and their openings and progressively expanding through the interstices while expelling air from breather holes, the binder then being cured in the mold either with the tubes still in place or with the tubes removed and the spaces filled with similar aggregate and binder before curing is completed. To prevent aggregate from entering the tubes before pumping of the binder begins, a snug fitting rod can be inserted in each tube at one end, and then the pump can be started to inject liquid binder into the other end of the tube while withdrawing the rod from said one end of the tube at a rate proportional to the rate at which the mold fills with binder. The tubes can be bent to follow curved contours of the mold, and the mold can be evacuated of air while the binder is being infiltrated.

    摘要翻译： 用于内模浇注模具的方法和装置，其用于制造用可固化粘合剂渗透的聚集填料的成型制品，包括制备具有空腔的模具，并且具有延伸穿过模腔并与其表面隔开的门控管 管具有穿过其中的多个开口的壁，其位于模腔内部，空腔被干填充在具有聚集填料的管的外部，并且其间的间隙被泵送充满液体粘合剂以形成基质，粘合剂通过管进入 并将它们的开口逐渐膨胀通过间隙，同时从通气孔排出空气，然后将粘合剂固化在模具中，或者管子仍然在位或者管被移除，并且在固化之前填充类似的骨料和粘合剂的空间完成。 为了防止骨料在泵送粘合剂开始之前进入管中，可以在一端插入每个管中的贴合杆，然后可以启动泵将液体粘合剂注入管的另一端，同时取出杆 以与模具填充粘合剂的速率成比例的速率从管的所述一端开始。 管可以弯曲以跟随模具的弯曲轮廓，并且当粘合剂被渗透时，模具可以抽空空气。

    Apparatus for making particleboard by a continuous extruding technique of particulated materials
    72.
    发明授权
    Apparatus for making particleboard by a continuous extruding technique of particulated materials 失效
    通过连续挤压技术制造刨花板的装置

    公开(公告)号：US4437824A

    公开(公告)日：1984-03-20

    申请号：US259819

    申请日：1981-05-04

    申请人： Jozsef Palotai

    发明人： Jozsef Palotai

    IPC分类号： B27N3/28 ,  B29C47/54 ,  B30B11/26 ,  B29J5/00

    CPC分类号： B29C47/54 ,  B27N3/28 ,  B29C47/0019 ,  B29C47/0021 ,  B30B11/26 ,  B29K2503/00

    摘要： The apparatus includes a multi-compartment hopper into each compartment of which various particulated materials are fed at a grain size according to the quality of the particular layer desired in the end product, which can be in the form of a board or a animal feed cakes in strip form, and wherein the materials are continuously but controllably fed into a pressing chamber onto which a forward pressing piston operates in one preferred direction, namely the direction of the feed, and a pair of side pressing pistons act from both sides, the interaction of all pressing means forcing the pressed product into a canal at the output of the pressing chamber where it may undergo further treatment such as by heating.

    摘要翻译： 该装置包括一个多室料斗，每个隔室中各种颗粒物质按照最终产品所需特定层的质量以粒度进料，其可以是板或动物饲料蛋糕的形式 并且其中材料被连续地但可控地馈送到按压室中，前进按压活塞在一个优选的方向（即，进料的方向）上工作，并且一对侧压活塞从两侧起作用，相互作用 所有的压制装置迫使压制产品进入加压室输出处的管道中，在那里可以进一步处理，例如通过加热。

    Process for producing a binder for wood materials
    73.
    发明授权
    Process for producing a binder for wood materials 失效
    木材用粘合剂的制造方法

    公开(公告)号：US4432921A

    公开(公告)日：1984-02-21

    申请号：US309174

    申请日：1981-10-07

    申请人： Annegret Haars ,  Aloys Huttermann

    发明人： Annegret Haars ,  Aloys Huttermann

    IPC分类号： C08L97/00 ,  C12N9/02 ,  C12P17/16 ,  B29J5/00

    CPC分类号： C12P17/16 ,  C08L97/00 ,  C12N9/0061 ,  C12Y110/03002

    摘要： A process in which phenolic substances, particularly lignin sulfonate, are used to produce a binder for wood materials. The phenolic substance is activated by displacing it with enzymes. Phenolic groups of the phenolic substance become oxidatively polymerized by a radical mechanism, so that the phenolic substance is changed into an active binder.

    摘要翻译： 使用酚类物质，特别是木质素磺酸盐来生产木质材料的粘合剂的方法。 酚类物质通过用酶置换而被活化。 酚类物质的酚基通过自由基机理氧化聚合，使酚类物质变成活性粘合剂。

    Method of molding a perforated article
    74.
    发明授权
    Method of molding a perforated article 失效
    成型多孔制品的方法

    公开(公告)号：US4401615A

    公开(公告)日：1983-08-30

    申请号：US268343

    申请日：1981-05-29

    申请人： Gunnar D. Gerhardson

    发明人： Gunnar D. Gerhardson

    IPC分类号： B27N5/00 ,  B29J5/00

    CPC分类号： B27N5/00

    摘要： A method of molding a perforated article involves supplying a formable material to a preforming chamber where the material is compressed so that it substantially assumes the cross-sectional shape of the preforming chamber. The formable material is then transferred under compressive forces to a molding chamber, which has a volume less than the volume of the preforming chamber and a shape which substantially matches the shape of the perforated article to be molded. The formable material is then heated in the molding chamber to cure it and thereby form the perforated article.

    摘要翻译： 一种成型多孔制品的方法包括将可成形材料供应到预成型室，其中材料被压缩，使得其基本上呈现预成型室的横截面形状。 然后将可成型材料以压缩力转移到具有小于预制腔体积的体积的模制室和与待模制的穿孔制品的形状基本匹配的形状。 然后将可成型材料在模制室中加热以使其固化，从而形成穿孔制品。

    Urea/formaldehyde adhesives
    78.
    发明授权
    Urea/formaldehyde adhesives 失效
    尿素/甲醛胶

    公开(公告)号：US4350543A

    公开(公告)日：1982-09-21

    申请号：US172225

    申请日：1980-07-23

    申请人： Ramon Bruguera

    发明人： Ramon Bruguera

    IPC分类号： C08G12/12 ,  C08L61/24 ,  C08L97/02 ,  C09J161/24 ,  B29J5/00

    CPC分类号： C09J161/24 ,  C08G12/12 ,  C08L97/02 ,  C08L61/24 ,  Y10T428/2998 ,  Y10T428/31957

    摘要： The invention relates to a process for the production of urea/formaldehyde adhesives and to the adhesives thus obtained.According to the invention, an inorganic salt is mixed with a source of formaldehyde, the resulting mixture is heated and reacted with urea to initiate polymerization in an acid medium, the polymerization reaction is stopped when the mixture has reached the required viscosity, the mixture is cooled, urea is added to the mixture during cooling and the adhesive is obtained after cooling.The adhesives obtained may be used in the production of agglomerated or laminated panels of wood.

    摘要翻译： 本发明涉及一种生产尿素/甲醛粘合剂的方法以及由此得到的粘合剂。 根据本发明，将无机盐与甲醛源混合，将所得混合物加热并与尿素反应以在酸性介质中引发聚合，当混合物达到所需粘度时聚合反应停止，混合物为 冷却后，在冷却期间将尿素加入到混合物中，并且在冷却后获得粘合剂。 获得的粘合剂可用于生产聚集或层压的木板。

    Methods of applying bonding materials onto fibrous webs
    80.
    发明授权
    Methods of applying bonding materials onto fibrous webs 失效
    将粘合材料施加到纤维网上的方法

    公开(公告)号：US4292271A

    公开(公告)日：1981-09-29

    申请号：US108022

    申请日：1979-12-28

    申请人： James F. Buob ,  Walter L. Pauls

    发明人： James F. Buob ,  Walter L. Pauls

    IPC分类号： A47L13/16 ,  B29J5/00

    CPC分类号： D21H5/2664 ,  D21H25/00 ,  D21H25/02

    摘要： Methods by which a dry-formed loose fibrous web is bonded by applying to one of its surfaces a low add-on level of a relatively high binder solids concentration bonding material to form a once-bonded web, and to the other side of the web, a greater add-on level of a relatively lower solids concentration bonding material, the first-applied emulsion preferably adding from about 20% to about 40% binder solids by weight, and the second-applied adding the rest of the total binder solids to be included in the fibrous web product. The bonding material can be a solution or emulsion. Preferably, the first and second-applied bonding materials are water-based latex emulsions, the solids concentration of the first-applied emulsion is from about 15% to about 25% by weight, that of the second-applied emulsion is from about 10% to about 20% by weight based on the total binder solids to be included in the fibrous web product, and a vacuum draws the second-applied bonding material into the web.

    摘要翻译： 干法形成的松散纤维网通过向其一个表面施加低附加水平的相对较高的粘合剂固体浓度粘合材料以形成一次结合的纤维网，并且向网的另一侧 相对较低的固体浓度粘合材料的附加水平较高，首先施加的乳液优选以重量计约20％至约40％的粘合剂固体添加，并将第二种施加的其余总粘合剂固体添加至 被包括在纤维网产品中。 接合材料可以是溶液或乳液。 优选地，第一和第二施加的粘合材料是水基胶乳乳液，第一次施加的乳液的固体浓度为约15重量％至约25重量％，第二次施用的乳液的固体浓度为约10重量％ 至基于待包括在纤维网产品中的总粘合剂固体的约20重量％，并且真空将第二施加的粘合材料吸入纤维网中。