TW201116394A - Jacking force transmitting member and jacking tube haning such member, and a foaming mold for the jacking transmitting member - Google Patents

Abstract

This invention provides a jacking force transmitting member to be emplayed in between jacking tubes in a jacking method. The jacking force transmitting member exhibit an excellent cushion performance by effectively avoiding a breakage of the jacking tubes even when a large stress, a sudden stress concentration or a sophisticated stress is exerted. The jacking force transmitting member of this invention is obtained by foaming foamable granules of polystyrene group resin in a mold, and has a density of 0.17 to 0.67g/cm<SP>3</SP> and an average diameter of voids of 60 μ or less.

Description

[Technical Field] The present invention relates to a thrust transmission member used between the propulsion pipes in the propulsion construction method, a propulsion pipe provided with the thrust transmission member, and a thrust transmission member. Foam molding mold used. [Prior Art] As a public sewer project, the construction method of the buried pipeline in the underground is widely used by the jacking meth〇d p propulsion construction method, which is not under the full scope of the buried pipeline. For example, the concrete pipe is pushed forward (pushing) in the ground in order to bury the pipeline construction method underground. Hereinafter, this tube will be simply referred to as a "propulsion tube". [Note: The jacking method is a method of pushing the pipe into the ground with a hydraulic press and then pushing it in the ground and burying it in the ground. The slang term is called the propulsion construction method. The outline of the burial project using the propulsion construction method will be described with reference to Figure 20. First, at the starting point and the ending point where the propulsion pipe is buried, each is dug up to a vertical pit or shaft hole. Next, the propulsion facility PF provided in the starting pit or starting hole STH as the starting point for embedding the propulsion pipe is ejected by the ENH toward the ending hole. The digging machine DM is used to make the digging machine DM, and the digging machine DM can be pushed in the ground while advancing. At this time, when the amount of ejection of the main top device PF is maximized, for example, by the main roofing device PF, the digging machine 4 322267 201116394 machine DM becomes all in the state of being pushed into the ground, then the propulsion pipe Hpp That is, it is pressed against the rear end of the boring machine DM, and the boring machine DM is further pushed in because the main top device PF is pushed into the propulsion pipe HPp. Then, when the ejector amount of the main top device PF is maximized, the next push pipe jjpf 1 is pressed against the rear end of the push pipe HPp, and the main top device PF is pushed into the push pipe HPfl. Thereafter, each time the amount of ejection of the main roofing apparatus PF is maximized, the next one of the propulsion pipes HPf2 is repeatedly pressed to the rear end of the propulsion pipe HPfl, and the main top equipment pf is pushed into the propulsion pipe. The process of Hpf2 and later. Then, when the digging machine DM reaches the arrival pit ENH which is the end point of the embedding of the propulsion pipe, the propulsion pipe used for the ejection of the digging machine DM (the electroplating tube HPp and the propulsion pipe HPfl to Fig. 20) 3), then remains in the path through which the digging machine DM passes. That is, the push tube HPp and the push tube HPfl to 3 are buried in the path through which the digging machine DM passes. Finally, the digger DM and the main roof equipment PF were removed, and the STH of the starting pit and the ENH of the Dingkeng pit were buried and the burial of the propulsion pipe was completed. In this case, the propulsion pipe used in the construction method is mostly made of concrete, resin-bonded concrete (resin c〇ncrete), ceramics, and iron. Therefore, when the main (4) is ready to eject the pusher tube, if the pusher tubes are in contact with each other, the portion to be contacted, for example, the end portions of the pusher tube HPp and the pusher tube (4) in Fig. 2 will be damaged. In order to prevent breakage of such a pusher tube and to convey the propulsive force for propelling the pusher tube, the thrust transmitting member is attached to the end portion of the pusher tube. Further, as shown in Fig. 21, in the burying process of the propulsion pipe, there may be no "straight line connection, but need-face" between the point and the end point of 322267 5 201116394, and /, ',:; In some cases, the starting point and the end of the work are used.. ^ &quot; Wang °p or part of the curve is linked to the advancement of the six values, the investigation is applied to the propulsion pipe. The stress is in the interval ST in which the propulsion path is a straight line. If the propulsion path is the curve section CV, the stress is not uniform, but the stress in the direction in which the propulsion path is curved becomes stronger, resulting in stress concentration (stress). A very suitable example of such a thrust transmitting member is described in Patent Document 1. The thrust transmitting member is made of expanded polystyrene, and has a ratio of 0·3 to 〇. A plate-shaped low-expansion molded product having a specific gravity. It is suitable as a reason for such a thrust transmission member, and is described in the patent document ,, generally, the critical compressive stress of the Humetube used as a push tube (critical compressive s Tress) is 300 to 1000 kg/cm2 (30 to 100 kN/m2), and the stress applied to the thrust transmitting member during the pushing process is generally 1/3 of the critical compressive stress of the aforementioned tube, and preferably The range of 1/10 to 1/3. Therefore, as the thrust transmitting member of the propulsion pipe, it is desirable that the critical compressive stress is 30 to 300 kg/cm2 (3 to 30 kN/m2), and foaming in such a critical compressive stress range The specific gravity of the polystyrene is in the range of 0.3 to 0.8. Further, it is described that if the stress caused by the weaving pressure is applied to the cushioning material, the elastic compressive change at the beginning and the force above the critical compressive stress are applied. Since the permanent plastic deformation occurs, the concentrated stress generated during the construction can be naturally dispersed. 6 322267 201116394 Further, in Patent Document 2, the low-fold foaming of the plate-like body is described. A foam molding die suitable for the molding of a molded article. In the foam molding die, as shown in Fig. 18, a flat steam spray is attached to the front sides of the two main frames (legs and frames) la, respectively. Steam blow -out

Plate) 2a, 2b. On the side of the main frame la side of the side, there is a molding opening having a side circumference of a mold cavity 4 which is sandwiched between the two vapor ejection plates 2a and the crucible at the time of mold clamping. (Fat (8) oper^ing) 3a ' Attachment plate 3 as shown in the 19th ® is attached and detached. Therefore, the molded product cavity 4 is surrounded by the side surface of the plane which is formed as the two ink ejection plates 2a and 2b, and the side peripheral surface of the molding opening 3a formed on the auxiliary plate 3 The space is formed. In the mold cavity 4 of the molded product, the main frame is disposed so as to hold the raw material discharge port in the surface of the gas ejection plate 2a of the main frame la which can be assembled on one side, and the riding machine 5 on the la side is supplied. After the mold is closed, the molds 2a and 2b are discharged, and the molded mold cavity 4 is heated and steamed. Thus, the foaming particles are foamed and a low-fold molded body is molded in the mold. In Fig. 18, 6 is an eject〇r pin and 8 is a reinforcing support. The right-hand type foam molding die towel can be saved even if the shape or thickness of the molded article is lightly changed by replacing only the above-mentioned sub-board 3, so that it can be reduced to the expense and labor caused by the replacement of the crucible. In order to make the storage of the subsidiary board 3 of the "Mr. [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. 8-25393 (Patent Document 2) [Problems to be Solved by the Invention] Figure 22 is a stress-displacement (strain) curve of a thrust transmission member of a different gravity ratio as described in the above-mentioned patent document, whereby the curve recognizes 2' specific gravity 64. 64 and 〇. 34 The critical compressive stress is 30 to 300 kg / coffee (3 to 30 2), so it is more suitable. If the specific gravity is 〇13, the critical compressive stress will be reduced to 3 〇kg/cm2 (3kN/n]2). = The degree of deformation of the itself is increased, so that it is not appropriate to cause the rest of the tube due to the so-called bottoming phenomenon [the phenomenon that the rigid bodies collide with each other due to the elastic deformation I limit]. To avoid obstacles, the big situation is exhausted. The stress and stress concentration are more than 瞽+士&amp;=, when the propulsion method is used to embed the propulsion pipe in the ground, it is the path as buried. It’s very curved for the whole

The cost is separated, 322267 8 201116394 The long distance of the Weifa will increase the propulsion pipe and the surrounding: the frictional resistance. Therefore, when it is propelled, it needs to be more powerful. Communicate the material to exert a large amount of stress. The "J隹ΓGreen" will sharpen the propulsion pipe and the thrust transmission member. The curve of the propulsion pipe and the thrust transmission member will become the stress of the thinning and the addition of the material. Ding £ 长 The long distance of the propulsion method, the sharp curve and the result of the curve of the second:::, the excessive stress on the propulsion pipe can destroy the propulsion pipe, so it is urgent to be solved. The present invention provides a solution to the above-mentioned needs, and the == type is excellent in the way of avoiding damage on the propulsion pipe even if there is a large stress, a sharp stress concentration, and a complicated stress. The thrust conveys the material. In addition, the subject department provides a promotion tube that promotes the sputum method, and has a buffering performance. The superiority of the thrust conveys the material to promote the h, and the third subject provides a kind of suitable for the transmission of such thrust (4) Foam molding foam molding die. [Means for Solving the Problem] / In order to solve the problem, the inventors of the present invention have focused on the case of a foamed resin molded article, as shown in Fig. 23, the stress, the linearity, and the plasticity. Between the regions, there is the fact that there is an elastic plastic zone (elast0 Plasticarea). In the elastoplastic region, the destruction of the bubble is at the stage of the portion, and in this region, although the portion is plastically deformed, it still has the property f as an elastomer. In the case of the above-described thrust transmitting member, such as when the load region reaches the plastic region, the thrust transmitting member is

S 322267 201116394 Loss of cushioning as an elastomer function, so that the load will be transmitted directly to the push tube. Therefore, excessive stress acts on the propulsion pipe, so that the propulsion pipe is easily damaged. However, the thrust-conducting member is in the elasto-plastic region, and the load is absorbed by the part due to the load of the action - while the part is in the plastic deformation, while still having the property as an elastomer, The required cushioning performance is such that the pusher tube does not break as long as it is in the elastoplastic region. Therefore, even in the case of a thrust transmitting member made of a foamed resin having the same specific gravity (density), the range of the elastoplastic region is wide, in other words, the inclination of the elastoplastic region on the stress-strain curve in Fig. 23 The smaller the smaller, the better the cushioning performance as a thrust transmitting member. From this point of view, the stress-strain curve =, such as from the elastic region to the plastic region, is described in the patent document ,, in the case where the thrust of 0.64 and G. 34 is not conveyed in Fig. 22, the stress-strain curve = The range of the elastoplastic region is narrow, and in the case of applying a too high load, a thrust transmission structure may occur:: A situation in which the load is sufficiently absorbed. That is, there is still room for improvement from the viewpoint of being able to obtain excellent cushioning performance in a wider range. ^ The present inventors, from the above point of view, after a number of experimental fish studies = hair: the foaming particles are emitted in the mold, and the result is that the density and the average bubble diameter are differentiated. Specifically, the present invention is completed by the fact that the thrust transfer structure made of a broad foaming resin in the elastoplastic region is completed. That is, using the thrust transmitting member of the present invention, the thrust transmitting member obtained by foaming the hairpin 1 in the mold is characterized in that the density is 〇17 322267 10 201116394 to 0. 67g/cm3, and the average The bubble diameter is 6〇/αΐη or more. Further, the density is preferably in the range of 〇20 to 〇60 g/cm3, more preferably in the range of 0.33 to 〇.6〇g/cm3. Further, the average bubble diameter is preferably 20 to 60 / / m, more preferably 30 炱 50 ° as shown in the following examples. In the thrust transmitting member using the present invention, if the density is less than 〇. 17g At /cm3, the range of the elastoplastic region is small, and the cushioning property as a thrust transmitting member is poor. Further, when the density exceeds 0.067 g/cm3, the expansion ratio is too small and the elastic force is insufficient. After all, the cushioning performance as a thrust transmission member is poor. Further, when the average bubble diameter exceeds 6 〇/ζιη, since the inclination of the stress-strain curve in the elastoplastic region is large and the range is also narrowed, when the strain increases, the stress increases, that is, The ability to absorb the load is reduced, so that the cushioning performance as a thrust transmitting member is lowered. Although the lower limit of the average bubble diameter is not limited, if the bubble is too small ^^^^&gt;^(c〇ntinuous foaming, the strength of the thrust transmitting member is lowered. Therefore, the lower limit of the average bubble diameter is preferably 20# m or more. For shun": 5% or more. If the rubber melt adhesion rate conveys the compilation, it is preferable that the foaming granules are strongly solidified by each other, and the strength is increased. For example, the melt adhesion rate is less than 7〇〇. / Because the foaming granules are joined to each other, it is not suitable to convey the damage of the material by the small stress = easy 4. The hair is foamed in the forming mold, and the polystyrene is used. Foaming particles of a vinyl resin are preferred, 11

S 322267 201116394 Other foaming particles which may be made of a resin such as a polypropylene resin or a polyethylene resin. In any case, it is preferred that the low-expansion particles are formed in an undistributed or volumetric foaming ratio in the range of 2.0 μ 20 times. The low-expansion of the unexpanded particles or the volume expansion ratio in the range of 2 () to 2 () times is filled in the molding cavity of the foam molding mold. After the foam is formed, a low-fold foaming (four) force transmission member having a density of G•(10) to 〇·(10)/cm3 can be obtained. The sufficiency of 0. 17 to 0. 67g / cm, the density of the foam is 0. 17 to 0. 67g / cm The low (four) shaped thrust of the molded material conveys the material. However, in order to obtain a better foaming (4), the expansion ratio of the undeveloped sub-hybrid is 2. 0 to 6 times (four) β (4) benzene (four), and the low ratio The foamed particles are filled in the cavity of the molded product of the foam molding die, and the weight of the low-expansion molded product having a density of q 17 to &amp; Communicate the material. In the thrust transmitting member of the present invention, if the average bubble j is intended to be (four) _ ′, the extension (four) can be used before foaming! : = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The above-mentioned propulsion officer is characterized by: the above-mentioned thrust transmission member at the front end and/or the rear end section. As a propeller, the heart: coagulation" 322267 12 201116394 system of rest, or A box culvert (box cu 1 vert), a resin tube made of resin concrete or resin, a ductile tube made of iron, etc., representatively, a concrete tube made of concrete can be used. The material can be foamed by any of the foam molding dies. As an example, a foam molding die having a sub-plate having the structure described in Patent Document 2 can be mentioned. As a result of various experiments, a foam molding die which is particularly suitable for the foam molding of the above-described thrust transmission member has been invented. The foam of the first form suitable for the foam molding of the thrust transmission member of the present invention Molding mold Attached to the front side of the two main frames, a flat steam ejecting plate is attached to the front side of the two main frames, and is mounted on at least one of the main frame sides in a detachable manner. When the mold is lost by the two gas ejection plates, the auxiliary plate of the molding opening of the side of the molded product 4 is formed, and the molding cavity is formed as one of the two steam ejection plates. a foam molding die formed on a front surface side of the plane and a space surrounded by a side peripheral surface of the molding opening formed on the sub-plate, characterized in that it is at least opposite to the vapor ejecting plate The reinforcing support on the back side of the region of the molded product cavity is provided with a reinforcing support having a shape in which a portion in contact with the back surface of the vapor ejection plate is formed in a linear shape. In one aspect, the plurality of sheets having the plate-shaped reinforcing support are formed on the back side of the steam ejecting plate opposite to the cavity of the molded product at intervals. s 13 322267 201116 The 394 aspect has a form of the plate-shaped reinforcing support formed by covering the entire width of the main frame. The foam molding die of the first aspect is formed at least in a direction opposite to the vapor ejection plate. The reinforcing support on the back side of the region of the mold cavity is not a cylindrical or cylindrical reinforcing support of the conventional method, but has a shape in which a portion that is in contact with the back surface of the vapor ejection plate is linear. The plate-shaped reinforcing support body can thereby support the back side of the region of the molded product cavity facing the vapor ejection plate in a wider area than in the case of the cylindrical or cylindrical reinforcing support. As a result, the dispersion of the foaming pressure can be achieved, whereby the deformation of the vapor ejection plate can be suppressed, and as a result, the deformation of the foam molding die can be suppressed. By increasing the number of the cylindrical or cylindrical reinforcing support, it is also possible The same support area as in the case of a plate-shaped reinforcing stay in which the contact surface is linear is obtained. However, it is extremely difficult to form a plurality of cylindrical or cylindrical reinforcing supports between the vapor ejecting plate and the main frame. In the foam molding die according to the first aspect described above, since the plate-shaped reinforcing support is disposed, the mold is formed to be easy to manufacture. In the foam molding die according to the first aspect of the invention, the plurality of the plate-shaped reinforcing reinforcing members are disposed on the back side of the vapor ejection plate opposite to the molding cavity of the molding product at intervals. It can be supported from the back side in a state of more dispersed foaming pressure. In the foam molding die according to the first aspect, the plate-shaped reinforcing support can be realized in such a manner that at least the vapor ejection plate can be positioned on the back side of the region facing the molding cavity. purpose. In the steam 14 322267 201116394 other areas of the ejecting plate, it is also possible to arrange the same cylindrical or cylindrical reinforcing support as before. However, from the viewpoint of easiness of design, it is preferable to form the above-mentioned plate-shaped reinforcing support so as to cover the entire width of the main frame. In the foam molding die according to the first aspect, a sub-plate having a shape of a protruding region projecting outward from the main frame when the attachment plate is attached to the main frame may be employed. In this aspect, a hook of a crane or a jack is attached to the protruding region to make a state in which the sub-board is suspended, and in this state, the carrying of the sub-board is carried out or on the main frame. The advantage of installation. A foam molding die according to a second aspect of the foam molding of the thrust transmission member of the present invention is attached to the front side of the two main frames, and a flat steam spray is attached so that the front side thereof can be a flat surface. The ejecting plate is attached to the main frame side of at least one of the sub-frames, and is attached and detachably attached to the molding opening which is sandwiched between the two vapor ejecting plates during the mold clamping to partition the molding cavity. a plate, and the molding cavity is a foam molding die formed by a space surrounded by a side surface of each of the two steam ejection plates and a side peripheral surface of the molding opening formed on the sub-plate. The utility model is characterized in that: a plurality of raw material feeding machines are installed on the main frame of any one of the sides in such a manner that the steam ejection plate surface can have a raw material discharge port, and the auxiliary plate is composed of two or more detachable auxiliary plates. In the case of at least one of the sub-plates, two or more molding openings are formed in the surface, and any one of the above-mentioned sub-plate groups can be attached to the main frame. Feeding machine A raw material in the form of the whole of the molded article molding the points 15 322,267,201,116,394 the manner determined in the vapor ejected material in the plate surface of the discharge port of the location, or determine the position of the inside of the subsidiary plate surfaces forming the opening. The foam molding die according to the second aspect described above is provided with a plurality of raw material feeding machines. Further, the sub-plate group used while exchanging is provided with a sub-plate in which two or more molding openings are formed in the surface. Further, even when a sub-plate having two or more molding openings is selected, all of the two or more molded product cavities formed there are supplied to the raw material of the foamable particles from the respective raw material feeding machines. Thereby, when a sub-plate having two or more molding openings is selected, two or more foam molded articles can be simultaneously produced by performing a molding process once. In this way, productivity can be improved. If a sub-plate having two or more molding openings is selected, depending on the position at which the molding opening is formed, any one of a plurality of material ejection ports formed in the vapor ejection plate surface may be located on the sub-board. The case where the surface of the aforementioned molding opening is not formed is not formed. In this case, since the raw material discharge port is closed by the region of the non-molding opening of the sub-plate, no particular problem occurs. However, from the viewpoint of easiness of molding processing and elimination of waste of raw materials, it is preferable to provide a fast shutter which can stop the supply of raw materials at a position upstream of the raw material discharge port on each raw material feeding machine. The kind of blocking means. In one aspect of the foam molding die according to the second aspect, the molding opening formed on each of the sub-plates constituting the sub-plate group forms a fan shape, and the raw material ejection port can be positioned to form the fan shape. The position of the raw material discharge port in the vapor ejection plate surface is determined in a manner to form a slightly center of the opening, or the position of the opening 16 322267 201116394 in the auxiliary plate surface is determined. Chengzhe: In this death, the raw materials ejected from one raw material discharge port are formed by the two-dimensional and New Zealand-in-the-middle mode to form the above-mentioned forming openings: and:: The whole area of two or eight. Therefore, the - surface simplifies the raw material supply system, and the one-two-two-quality high-quality thrust transmission member is molded in the mold. w, in the aspect of the foam molding die of the second aspect, the foaming has a plurality of ejector tips, and the ejector tip is selected from either the one or the other. In the case of the frame, the position in the surface of the Luo gas ejection plate is also determined in the manner of the mold cavity formed by the above-mentioned A, j. In the above aspect, it is more preferable that the ejection tip is provided in the raw material feeding machine. In this way, the ejection tip is provided, and even if any of the sub-plates is selected, the release of the foamed molded article from the sub-plate becomes easy. In particular, if the tipping tip is provided in the raw material feeding machine, the number of the parts present in the main busy wood can be reduced, and the heating gas can be supplied into the molding cavity without partial bias. According to the present invention, it is possible to provide a thrust transmitting member which is used between the propulsion pipes in the propulsion construction method, and even a thrust transmitting member having the same density as the thrust transmitting member. It is also a thrust transmission member with superior cushioning performance. Further, it is possible to provide a propulsion pipe which is a propulsion type of the propulsion method and which is characterized in that it has a thrust transmitting member which is excellent in cushioning performance. Furthermore, it is possible to provide a foam molding die for performing foam molding of such a force transmitting member. [Embodiment] 6

S 322267 17 201116394 [Best Mode of Invention] [Thrust Transmission Member] First, a specific example of the thrust transmission member of the present invention and a method of manufacturing the same will be described. As the foaming particles, unexpanded particles or volumetric foaming multiples are used.  The low-expansion foamed particles are formed in a range of 20 times and filled in a molding cavity of a suitable foam molding die to have a density of 0. 17 to 〇. The thrust of 67g/cm conveys the thrust of the material to convey the material inside the mold. 1. If J is used to return low-expansion particles, the foamed polystyrene resin particles are heated by steam and the volume expansion ratio is 2.  〇炱 20 times the range of people. The polystyrene-based resin which is a base material of the foamable polystyrene-based resin particles is a single component of styrene which may be a polystyrene as a main component, or may be an α-fluorenyl group. Styrene, p-methylstyrene, tert-butyl::: styrene derivatives such as styrene, methacrylic acid vinegar, butyl = _, methyl propyl citrate, methyl methacrylate , methacrylic acid such as methyl acrylate and methacrylic acid, or acrylonitrile ethyl fumarate vinegar and other various monomers, such as copolymerization, t-birth, trj, county, diol dimethyl propylene The sour 酉 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ As a volatile foaming agent, it can be used as a sulfonated hydrocarbon, an alicyclic 322267 18 201116394, a halogenation reduction, a ketone or the like. In addition, as an aliphatic hydrocarbon, a propane Dingyuan (Zheng Dingxuan, Iso Ding), a Wuyuan (Zhengbahuo, an isoprene, etc.), and an alicyclic hydrocarbon can be exemplified: a ring The court, the ring home, and so on. The _ 素 can be exemplified by trifluoromethane, trichlorotrifluoroethane, tetrafluoroethane: - a chaotic or a difluoroethane (tetra)-hydrocarbon or the like, or two or more. In the case of the ketone, acetone, methyl ethyl ketone, etc. may be mentioned as an example of the ketone, and acetone, methyl ethyl ketone, etc. may be mentioned. : Clonium carbonate, carbonic acid = carbonic acid test, ferulic ammonium, azide compound, hydrogen pene and other prosthetic 糸 foaming agent 'azo amine, azo sulphur acid lock, saponin The above-mentioned foaming agent may be used singly or in combination of two or more kinds, and the average particle diameter of the secret resin particles is within a dry circumference of 300 (four) 2,500, preferably 65〇^ to 25, more preferably in the range of _ gift 2~. If the foaming property = ^ the average particle diameter of the olefin resin particles is less than the above range, the purchased particles are used as the substrate The foamed "stupided vinyl" ^ ^ low-pre-prepared (four) secret low-material residual charge = inner 'and internal mold foaming to make the thrust transmission members become narrower than each other Therefore, the melt adhesiveness of the foamed molded article obtained by heating becomes uniform, and the thrust having a sufficient strength is obtained. When the average particle diameter of the ethylenic resin particles exceeds the aforementioned range, for example, = 19 s 322267 The amount of 201116394 is increased, making it difficult to transport the particles into the cavity or evenly fill. Further, it becomes a foam molded product which is not suitable for producing a complicated shape. In the foamable polystyrene-based resin particles, a foaming agent or a foaming aid may be added as needed in the foaming property of the resin particles or the mechanical strength of the obtained foamed molded article. Various additives such as a lubricant, a shrinkage preventive agent, an antioxidant, a charge preventive agent, a flame retardant, an ultraviolet light absorber, a light stabilizer 'colorant, an inorganic bubble crystal nucleating agent, and an inorganic filler. The bubble modifier may, for example, be a surfactant such as a burnt-based sulfuric acid steel or a burnt-base benzoate. The aforementioned foamable polystyrene resin particles, A conventionally known method for producing various foamed resin particles can be employed. Among these methods, the suspension polymerization, the extrusion-underwater cut pellet method. In the low-expansion foaming particles, the foaming resin particles are heated to a heat and foamed to a volume expansion ratio of 2. 〇 to 2 〇 in the range of 'two °. The range of the volume expansion ratio is preferably from 2·Q to ίο倍, and more 2. 0 to 6 times, or 2.  0 to 5 times. When the volume expansion ratio of the low-expansion foaming particles is less than the above range, the deviation of the volume expansion ratio is increased, so that the particles which are uniformly hooked cannot be obtained. On the one hand, the volume expansion ratio of the low-expansion foaming particles exceeds the foregoing. At the time of mining, it is impossible to obtain a thrust transmission member having sufficient strength and long-term durability. The above-mentioned low-expansion foaming particles are caused by heat-expanding the foamable resin particles to a volume expansion ratio of 2. 范 内 内 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 322 The thrust transmitting member of the present invention is characterized by the above-mentioned expandable resin particles (unexpanded particles) or the aforementioned low-expansion particles (volume expansion ratio is 2 至 to 20 times, more preferably 2. 0 to 6 times), filled in a cavity formed by a suitable foam molding die in conformity with a desired molding shape, and the density obtained after foam molding in the mold is ϋ·Π to 〇.  67 g/cm3, and the average bubble diameter is 6 〇 or less. In the thrust transmitting member of the present invention, the foamable resin particles or the low-expansion foamed particles are molded by foaming in a mold, so that the melted adhesive particles have excellent melt adhesion ratio and elongation, and are resistant to bending. It is excellent in strength and compressive strength, and it requires not only high-strength, long-term durability of concrete propulsion pipe thrust transmission members, but also other fields of civil engineering, under-floor fabrics and other fields for building materials. [Examples] Hereinafter, examples and comparative examples are shown. Here, each of the measurement items of Examples 1-4 to 4 and Comparative Examples 1 to 5 is as follows. Further, the measurement items and the like of the examples 1 to 4 and the comparative examples 1 to 5 and the gentleman's fruit are shown in Table 1, and the stress-strain curves of the above are shown in Fig. 1 . Further, electron micrographs of the cross-sections of the foam molded articles of Examples 1 to 4 are shown in Fig. 2 . <bulk density> The "bulk density" of the pre-foamed particles is determined by the following methods. First, a 500 cm3 measuring cylinder was prepared and filled with pre-expanded particles in such a manner that the scale of 5〇〇cffi3 322267 21 201116394 was horizontal. Further, the cylinder is visually viewed from the horizontal direction, and if there is a scale of up to 500 cm3 in the preliminary foamed particles, the filling of the preliminary expanded particles in the cylinder is immediately terminated. Then, the mass of the preliminary expanded particles which have been filled in the measuring cylinder is weighed by the effective number of two digits below the decimal point and the mass is set to W (g). Further, the bulk density of the preliminary expanded particles was calculated according to the following formula. Bulk density (g/cm3) = W (g) / 500 (cm3) <bulk foaming pl〇id> The "volume expansion ratio" of the preliminary expanded particles is the reciprocal of the bulk density ( 1 / bulk density), in the case of polystyrene resin, bulk density 〇.  The pre-expanded particles of 33 g/cm3 are 3 times the volume expansion ratio, and the volume density is 〇.  The pre-expanded particles of 2 g / cm 3 have a volume expansion ratio of 5 times. <Density> The "density" of the foamed molded article is in accordance with the method described in JIS K6767: 1999 "Measurement of foaming plastics and rubber density of apparent density". That is, a test piece of 5 〇 cm 3 or more (for example, a semi-rigid and soft material = a clear shape of 1 〇〇 cjn 3 or more) is cut in such a manner that the original bubble is not allowed to be cut to determine the mass (g ), and calculated according to the following formula. Density (g/cm% test piece mass (g) / test piece volume (cm3) <foaming multiple> &amp; H type "foaming multiple", the reciprocal of the aforementioned density (1/density) 0 in the stupid In the case of B-based resin, the density is 0. The foaming of 33g/cm3 is 3 times' and the density is 0.  2g/cm3 of foamed moldings 22 322267 201116394 The bubble multiplication becomes 5 times. <Average bubble diameter> The average cell diameter (/zm) was measured in accordance with ASTM D-2842-69. For the device, a scanning electron microscope S-3000N (manufactured by Hitachi, Ltd.) was used. The cut surface of the foamed molded article was photographed by an electron microscope, and the average chord length t was measured from the number of bubbles picked up on the straight line (60 mm) of the photograph, and the average bubble diameter was calculated using the measured value. Average chord length t ( /z m) = 1000x60 / (number of bubbles X photography multiple) Average bubble diameter (/i m) = t / 0.  616 <Fusible adhesion ratio> A slit line having a depth of 1 mm was formed on any surface of the foamed molded body using a cutter knife, and the foamed molding was divided into two portions by hand or iron shovel along the cutting line. Then, in any one to 15 发泡 of the expanded particles exposed on the fractured section of the foamed molded body, 'counts (a) the number of particles broken in the expanded particles, and between the expanded particles The number of broken particles in the hot-melt adhesive interface was calculated from the following formula to calculate the melt adhesion ratio of the foamed molded product. Melt adhesion rate (%) of the foamed molded product = 1 〇〇χ particle number (number of particles (a) + number of particles (b)) The melt adhesion ratio is 70% or more, and is not more than 7〇%. Qualified. σ <stress-stress curve> 322267 23 201116394 A test piece having a thickness l〇〇mmx width 50 mm x length 50 mni was taken from the foamed molded article. According to JIS K7220: 2006 "Compression Test of Foamed Plastic-Hard Material", the load at 10% deformation was obtained, and the compressive pressure was calculated and the load was applied to a load of 100 kN to obtain a compressive stress-deformation curve. In addition, the 'testing' uses a fixed-speed universal testing machine (loading element (1〇ad ceii), the valley is 1 OOkN), and the deformation is measured by a displacement meter (diSpiacement meter) (1000xl0'6/_, 〇 ·ι% R0 (restricti〇n orifice), the load speed is set to 〇.  2mm/min. [Example 1] In a 100 liter reactor, pure water, 300 g of a third generation phosphoric acid, and sodium dodecylbenzenesulfonate were placed.  7 g, with stirring, 110 g of benzamidine peroxide dissolved in 42 kg of styrene and 8 g of t-butyl peroxybenzoate were added. After the reactor was sealed and heated to 9 Torr and reacted for 5 hours, the temperature was raised to 125 ° C in 1 hour, and after 1 hour, cooling was started and the temperature was cooled to normal temperature. The obtained slurry was dehydrated and dried, and sieved to obtain polystyrene resin particles having an average particle diameter of 1400 #m. Next, add pure water in a 5 liter reactor. 5 kg of polystyrene resin particles obtained by the above method (average particle diameter 14 〇〇 &quot; m, weight average molecular weight of about 300,000, residual monomer of about 2 〇〇〇 ppm).  〇kg, dioxin benzoate G. 2 g, 7 gg of magnesium pyrophosphate, and then mixed to suspend. Then, in advance prepared pure water.  5kg, twelve burning base stupid yellow sulphate.  Lieutenant Benzene 9.  5 g was guessed using a homomixer (“(4)) to prepare the suspension and feed it to the anti-brain. Next, at room temperature in the reactor, 322267 24 201116394 pressed pentane 25g, as a bubble modifier sodium alkyl sulphate 〇 2g, butane 18g, and rose fox to 120 C ' for 5 hours and cooled to the room After the temperature was taken out, foamed polystyrene resin particles were obtained. Next, the foamable polystyrene resin particles obtained by the above method were aged at an ambient temperature of 15 C for 2 days. The foamed polystyrene resin particles which have been cooked, and then according to the foam molding die described in Fig. 9 to Fig. π (however, the reinforced reinforcing foam molding die shown in Fig. 5) ), filled into the four molding cavity formed by the attachment plate 2Gb shown in Fig. 15 (the distance between the lower edge and the upper edge is 26 Gnmi, the opening angle of the fan die is 9 () degrees, and the thickness is 15 ), using 0. The water vapor of 08 MPa (MPa) was heated for 35 seconds and cooled to obtain a density of 0. There were four foam moldings of four fan shapes of 59 g/cm3 and a foaming multiple of h7 times. Then, the average bubble diameter (4) of the foam and the melt adhesion ratio (%) were measured. [Examples 2] Foaming polystyrene resin particles were obtained in the same manner as in Example 1. Next, the expandable polystyrene resin particles obtained by the above method were aged at an ambient temperature of 15 ° C for 2 days. ▲ Using a batch foaming machine, heat the water with about 95 ΐ of water vapor to form a secret polystyrene resin particle to prepare for foaming into a bulk density.  33 g/cm3, volume expansion factor of 3 times. The pre-expanded particles were placed at room temperature for a few days, and after the filaments were formed, the preparation of the prepared secrets was carried out in the same manner as in the actual method, and the density of the 322267 25 201116394 was obtained.  Four foam moldings of a fan shape of 33 g/cm3 and a foaming multiple of three times. Then, the average cell diameter (//m) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example 1. [Example 3] Foaming polystyrene resin particles were obtained in the same manner as in Example 1. Next, the expandable polystyrene resin particles 'obtained according to the above method were aged at an ambient temperature of 15 ° C for 2 days. The mature foamable polystyrene resin particles are preheated by a batch foaming machine with water vapor of about 95 tons to prepare for foaming into a bulk density.  Cm3, volume expansion ratio of 5 times. The pre-expanded particles were placed at a normal temperature for about 1 Torr, and after aging, the pre-expanded particles were molded in the same manner as in Example 1 to obtain a degree of 0. 20 g/cm 3 and a foaming multiple of 5 times. Four foam moldings in the shape of a fan. Then, the average cell diameter (/zm) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example}. [Example 4] A styrene bromide resin tweezers was obtained in the same manner as in Example 1 except that sodium sulphate was not added as a bubble adjusting agent. Next, the expandable polystyrene resin particles obtained by the above method were aged at an ambient temperature of 12 Torr for 7 days. The cooked foamable polystyrene and resin particles are heated by a batch foaming machine with water vapor of about 95 c, and are prepared by foaming into a bulk density of 322267 26 201116394 〇.  33g/cm3, volume expansion factor of 3 times. The pre-expanded particles were allowed to stand at room temperature for about the next day, and after they were aged, the pre-expanded particles were molded in the same manner as in the embodiment to obtain a density of 0. Four foam moldings of a fan shape of 33 g/cm3 and a foaming multiple of three times. Then, the average cell diameter (# m) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example i. [Comparative Example 1] In addition to sodium sulphate as a bubble modulating agent, lanthanum was added.  In the same manner as in Example 1, except for lg, foamable polystyrene resin particles were obtained. Next, the expandable polystyrene resin particles obtained by the above method were aged at 2 ° C at an ambient temperature of 15 °C. In the same manner as in Example 1, a density 〇 59 g/cm 3 and a foaming multiple were obtained.  4 foam moldings in the shape of a fan of 7 times. Then, in accordance with the same manner as in the first embodiment, (4) the average bubble diameter (_) and the melt adhesion ratio (%) were shouted (4). [Comparative Example 2] In addition to being a bubble regulator, sodium sulfonate was added.  In the same manner as in Example 1, except for lg, foamable polystyrene-based resin particles were obtained. Next, the expandable polystyrene resin particles obtained by the above method were aged at 2 ° C at an ambient temperature of 15 °C. The cooked foaming polystyrene tree filaments are heated by a batch foaming machine with water vapor of about 95 Torr, and the foam is made into a bulk density of 27 322267 201116394 0·33 g/cm 3 , and the volume expansion ratio is 3 times. . The pre-expanded particles were allowed to stand at room temperature for about 1 day to make them mature. In the same manner as in Example 1, the bulk density was obtained. There were four foam-shaped molded articles having a fan shape of 33 g/cm3 and a foaming multiple of three times. Then, the average cell diameter (//m) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example 1. [Comparative Example 3] A foamable polystyrene resin particle was obtained in the same manner as in Example 1 except that sodium sulphate was added as the bubble adjusting agent. Next, the expandable polystyrene resin particles obtained by the above method were aged at an ambient temperature of 15 ° C for 2 days. The cooked foamed polystyrene resin particles were heated by a batch foaming machine at a water vapor of about 9 (rc), and the bulk density was 预备 by preliminary foaming.  2 in 5 times the volume expansion ratio of cm3. The pre-expanded particles were allowed to stand at room temperature for about i day to be aged, and the density Q was obtained in the same manner as in the example i. Feet—four foam moldings in the shape of a fan that was expanded by a factor of five. Then, according to the method of Example 1 (5), the average bubble diameter (_) and the melt adhesion ratio (%) of the foamed molded article were obtained. [Comparative Example 4] Foaming polystyrene resin particles were obtained in the same manner as in Example 1. Next, the expandable polystyrene resin particles 322267 28 201116394 sub-obtained by the above method were aged at an ambient temperature of 15 ° C for 2 days. The cooked expandable polystyrene resin particles were heated by a batch foaming machine at a water vapor of about 95 Torr by a preliminary foaming to have a bulk density of 14 14 g/cm 3 and a volume expansion ratio of 7 times. The pre-expanded particles were allowed to stand at room temperature for about the next day, and then the prepared foamed particles were prepared in the same manner as in Example 1 to obtain a density 〇.  Four foam-shaped molded articles of 14 g/cm3 and a foaming multiple of 7 times. Then, the average bubble diameter (/zm) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example 1. [Example 5] The foamable polystyrene resin particles were obtained in the same manner as in Example 1 except that the sodium sulfonate was not added as the bubble modulating agent, and the particles were made at 15 ° C. Cooked at ambient temperature at 7 曰. The foamed polystyrene resin particles which have been cooked are heated by a batch foaming machine with water vapor of about 95 Å: by preliminary foaming into a bulk density.  33g/cm3, volume expansion factor of 3 times. After the pre-expanded particles were placed at a normal temperature for about aging, and the pre-expanded particles were obtained in the same manner as in Example ,, a fan-shaped foam having a density of 33 g/cm and a foaming multiple of 3 times was obtained. 4 moldings. Then, the average bubble diameter (/ΖΠ1) and the melt adhesion ratio (%) of the foamed molded article were measured in the same manner as in Example 1. S.  322267 29 201116394 [Table 1] Example density (g/cm3) Ripening temperature (°C) -—--- Ripening time (曰) Bubble conditioner addition amount (g) Average bubble diameter (^ m) Melt adhesion rate (%) Example 1 0.  59 15 ----- 2 0.  2 34 75 Example 2 0.  33 15 ------ 2 〇 ‘ 2 38 80 Example 3 0. 20 15 '*- __ 2 0.  2 50 Example 4 0.  33 12 7 a 38 ϋ J 80 Comparative Example 1 0.  59 15 --_ 2 0. 1 75 75 Comparative Example 2 0.  33 15 ------ 2 0.  1 79 Comparative Example 3 0.  20 15 2 0.  1 85 ου 85 Comparative Example 4 0.  14 15 ~--- 2 0.  2 61 9〇 Comparative example 5 0.  33 15 7 79 80 --^ [Evaluation] (1) The foamed molded articles obtained in Example 1 and Comparative Example i, both of which have a density of G. 59g/on3, in addition, in the third stress-strain curve, the boundary compressive stress is a high value of the degree of application, and both are suitable as the thrust transmission members for use with the high-load propulsion pipe. However, the foaming of the example i was pure in the comparative example, and the inclination of the region of the bullet (four) was small, and the circumference of the fe was also broad. That is, even if the strain increases, the stress rises less, and it can be seen that when a large load is acting, the fact that it can absorb a greater weight than the comparative example. Such a difference # is presumed to be caused by a difference in average bubble diameter (34 vs. 34#m in Example i and 75/m in Comparative Example 1) due to the difference in the amount of the brewing agent. This fact indicates that when a high load is applied, the foamed molded article of the embodiment is used to push 322267 30 201116394, which is a push member which is formed by the foamed molded article of Comparative Example 1. In order to reduce the fact that it is influenced by the advancement #, it can be used as a thrust transmission member with excellent cushioning performance. The foaming molding spoon obtained in Ming's, Examples 2 and 4, and Comparative Examples 2 and 5 was rated as 〇. The 33g/cm2 person's 'in the first} figure = the change of the critical I-shrinkage stress is the value before and after the deletion, and (4) the material and the medium-load propulsion pipe use the thrust to convey the material. In this month, the foamed molded articles of Examples 2 and 4 were smaller in inclination than the elastic-plastic region of Comparative Example 2, and the range was also broad. Therefore, the foamed molded articles of Examples 2 and 4 were compared with the fact of the disk 5 of Comparative Example 2. This difference can also be presumed to be due to bubbles; the difference in the addition, or the difference in the number of curing days is the same as the difference between the direct and the bubble (compared to the examples of 4 and 4 of 38_ = 79 secret) This fact indicates that when the high load is: the thrust transmitted by the foamed molded articles of Examples 2 and 4 is compared with the foamed molded articles of Comparative Examples 2 and 5. The thrust conveyance member is a fact that it can reduce the influence on the propulsion pipe, and it can be said that the thrust transmission member used by the load propulsion pipe indicates that the cushioning performance is: In the case of the bubble changer 2g, the bubble diameter is 'in the fourth embodiment, the heat generation period of the foaming extension is 7 days longer than 2, so that a thousand spoons of 38_ are obtained. This fact, the shirt In the material of the present invention, the method of averaging the average bubble is not determined by = 31 g 322267 201116394. (3) The foaming density obtained in Example 3 and tt is higher than that in Example 3 /' Again, the critical compressive stress in the stress-spoon line shown in the ^ is 5kN/4, and both are suitable As the disk low-load propulsion pipe, the thrust transmitting member used was used. In this case, the foam molded product of Example 3 was slightly the same as the elastic-plastic zone in Comparative Example 3, but the inclination was small. Therefore, the foamed molded article of Example 3 is comparable to Comparative Example 3 in that it can absorb a larger difference in load, and it can be estimated that the amount of the bubble-forming agent is different from the average bubble diameter (relative This is caused by == (d) of Example 3. This fact indicates that when the high negative car: = the thrust formed by the foamed molding of Example 3 conveys the member, the phase is transmitted / in the case of 2 Comparative Example 3 The fact that the shape of the bubble is less than the influence of the tube, but the fact that the coffee is compared with the case of the example 4 is that the density is as small as (10) and the diameter of the bubble is as large as 61. It is known that the critical pressure conveys the material and is not suitable. As a push-up [foaming mold] used in the advancement, the description below is suitable for forming the aforementioned thrust transmission under the reference plane. ==The foam molding die. Also 'previously, in the reference (4) has been explained = well known In the following description, the same components as those in the foamed (four) are attached. The same symbol is attached. 322267 32 201116394 [Foam Forming Mold of the First Form] Refer to Figure 3 to Fig. 8 is a view showing an embodiment of the foam molding die 1 according to the first aspect. The foam molding die according to the first aspect is a main frame la, lb having a fixed side and a moving side as shown in Fig. 3 a raw material decorating machine 5, an ejection tip 6, a back panel 7a, 7b, and a sealing material 9. Thus, a steam supply port 15 is provided on one side of each of the main frames la, lb, and thus the main frames la, lb are The hot water vapor is supplied to the entire area. On the front side of the main frames la and lb (on the side of the molding die 4), flat air ejection plates 2a and 2b are mounted. The vapor ejecting plates 2a and 2b have vapor permeability similar to those of the conventional cavity metal mold or core metal mold. As shown in Fig. 4, the vapor ejecting plates 2a and 2b are provided with a core exhaust pipe. (the vent hole of the c〇re.) The steam ejecting plate 2a is formed so as to cover the main frames la and the front sides A and B of the specific force, by means of the screws 12 Installed on the main frame $h, ib' by the front side of the two steam ejecting plates 2a, 2b are respectively formed into a plane. On the fixed side main frame la, the fixing screw is used, and the loading and unloading manner is adopted. Attach the sub-board 2〇. The sub-board 2〇, as shown in Fig. 8(4) = two cases H, the whole is a rectangular-shaped port 2 with a flat surface on the back of the watch. The forming opening 22 is a screw hole that is used as a molded product cavity 4 in the mold hole 4, and 25 is used in the main frame 1a. Attached plate 2〇, as shown in Fig. 3, after being installed in the main frame (10), 322267 33 201116394 is clamped as shown in Fig. 4, and it becomes two vapors. The two sheets of the steam ejecting plates 2a and 2b are formed as a plane front side A and B, and the side peripheral surface 21 formed on the forming opening 22 of the sub-board 20 is formed. The space to be partitioned constitutes the molding cavity 4. The reinforcing main body 40 is provided in each of the main frames la and lb so as to be positioned between the vapor ejecting plates 2a and 2b and the back plates 7a and 7b. The reinforcing support 40 is formed into a linear plate having a predetermined width in a shape in which at least the vapor ejection plates 2a and 2b are in contact with the back side of the region facing the molding cavity 4 when the mold is closed. In the example shown in Fig. 3 and Fig. 5, the reinforcing support 40 is a plate-like member made of an aluminum alloy or the like having a width of about 20 mm, and covers all of the main frames la and lb. In the width mode, a plurality of sheets (in the illustrated example, five sheets) are disposed at intervals of about 150 to 200 mm. Further, in Fig. 5, the molding openings formed on the sub-board 20 are indicated by dotted lines. 22 formed part of the mold cavity 4, and the part indicated by 40a becomes the reinforcing support 40 The portion located on the back side of the region facing the molded product cavity 4 of the vapor ejection plates 2a and 2b. Fig. 6 is a view showing another example of the reinforcing support 40. In this example, the reinforcing support 40 is not The entire width of the main frames la and lb is covered, and the vapor ejecting plates 2a and 2b are formed in a plate-like reinforcing support having a slightly longer length than the molding cavity la, lb. Therefore, the vapor ejecting plate 2a is formed. In the same manner as in the case of the conventional foam molding die, the other regions of 2b and the back panels 7a and 7b are provided with a cylindrical or cylindrical reinforcing support 8° 34 322267 201116394 Fig. 7 showing the reinforcement described above. In still another example of the support 4, the same shape as the reinforcing support 4G shown in Fig. 5 is passed through the port 42. Although it is not necessary, the above-mentioned sub-plate 2 has a protruding region 23 protruding upward from the main frame la in a state of being fixed to the main frame la as shown in FIG. 3 . In the protruding region u, a through hole 24 is formed. Further, a support body a for supporting the lower end portion of the sub-plate 20 is formed at the end portion of the main frame la. In the foam molding die 1 according to the first aspect described above, as shown in FIG. 3, the mold is opened, and a molding opening having an appropriate shape is attached to the domain frame 1&amp; As shown in Figure 4, the mold is closed. , ", fruit, you can form a molded mold cavity 4. From the raw material feeding machine $, the foaming filaments are filled in the mold cavity 4 and the superheated steam is supplied from the steam supply port 15. The supplied superheated steam is introduced into the molding cavity 4 through the vent holes 11 formed in the vapor ejection plates 2a and 2b from the main frames 1&amp;, lb, and the foamable resin particles are foamed into a desired state. The way. The foaming pressure is generated by foaming. In particular, in the case of molding a low-expansion molded article such as the above-described thrust transmitting member, a large foaming pressure is formed in the molded mold 14. However, as described above, in the foaming dust-forming mold 1, the front side of at least the region where the cavity 4 is opposed to the steam ejection plates 2a and 2b, and the back plate 7a, 7b are as before. In the above description, the reinforcing support 40 having a linear shape in a shape in which a portion in contact with the back surface of the vapor ejection plates 2a and 2b is provided is formed. Therefore, the foaming pressure formed in the cavity 4 of the molded product can be carried out in a wide area, and therefore, the deformation of the vapor ejection plates 2a and 2b of the 322267 35 201116394 can be effectively suppressed, and as a result, the foam molding die 1 can be suppressed. The deformation. In the case of performing the above-described molding of the thrust transmitting member using the low-expansion molded product of the present invention, for example, the method of the quantitative pressure filling method as described in Japanese Patent Publication No. Hei 5-87364 it suits well. Thereby, uniform filling of the expandable particles or the preliminary expanded particles can be achieved, and the stress deviation due to the portion of the product can be eliminated. Further, after the mold is closed, the mold clamping pressure is continued until the completion of the foam molding, and the mold cannot be opened, whereby a product having a uniform thickness can be obtained. Further, in the above-described foam molding die 1, only the sub-plate 20 is replaced, and a molded article having a different shape or thickness can be formed. That is, the sub-board 20, as shown in the drawings (a), (b), and (c) of FIG. 8, is replaced by a type or a shape different from the molding opening 22, or a thickness difference, that is, A molded article having a different shape or thickness can be formed. Further, the sub-board 20 shown in Figs. 8(b) and (c) has the same overall shape as the sub-board 20 shown in Fig. 8(a), but in the eighth figure (b). In the example shown, four relatively small shaped opening 22a are formed, and in the example shown in Fig. 8(c), two fan shapes are formed which are narrower in width but expanded to slightly 180 degrees. The opening 22b is formed. Further, as in the case of the attached panel 20, when attached to the main frame la, such as when the sub-panel 20 has the protruding region 23 protruding upward from the main frame la, the hook and the crane are used here. The hook 30 to which the construction machine is connected, such as (not shown), facilitates the movement of the attachment plate 20, and facilitates the loading and unloading operation of the main frame la. 36 322267 201116394 Furthermore, in the above example, the attachment plate 2 is attached to the side of the main frame la on the fixed side, but the case where the ejector tip 7 protrudes from the moving side to the fixed side can be attached to the movement. On the side of the main frame lb. [Foam Forming Mold of Second Aspect] Next, an embodiment of the foam molding die 1G0 of the second embodiment will be described with reference to Figs. 9 to π. The foam molding die 100 of the second embodiment is similar to the foam molding die previously described in Fig. 18, and is adjacent to the main frame of the side, and in the figure, the main frame bar la of the fixed side is attached. There is a basic structural difference in the place where a plurality of raw material molybdenum is supplied to the machine 5 (9 in the following description). As shown in Fig. 9 and Fig. 1 , the foam molding die 1 has the main frames la and lb on the fixed side and the movable side, similarly to the first shape-shaped foam molding die 丨. Flat steam nozzles 2a, 2b are attached to the front side (i.e., on the side of the molded mold cavity 4). Since the vapor ejection plate % and 汕 are similar to the conventional cavity metal mold or core metal mold, they have vapor permeability. Therefore, as shown in the » 1G diagram, there is a core vent hole. (c〇re-vent) 10 vent hole u. Furthermore, in Fig. 9, 6 is the top soil tip and 8 is the reinforcing support. As described later, the above-mentioned ejection tip 6 is exemplified by the fact that the plurality of skirts are supported on the main frame la </ br> to avoid the complexity of the illustration, and only the ninth figure is shown! The top of the branch is 6. Further, in the foam molding die 1 of the second embodiment, the reinforcing support 8 of the cylindrical or cylindrical reinforcing support is not used, and the second embodiment is adopted. The part of the foam molding die 1 t which is in contact with the back surface of the vapor discharge plate is a linear plate-shaped reinforcing support 4〇. 322267 37 201116394 As shown in Fig. 10, the above-mentioned steam fixing screw 12 covers the main frame 芊: 2a 2b, which uses the front side A of the solid-wood 1a] b, and the R /> The front side of la, lb + "Α β is the plane of the two squirting squirting plates 2a, 2b. In addition, in Fig. 10, f ^ lining between the members In the main frame 1a on the side of the sputum Γ Γ ' ' ' 以 ' ' ' ' ' ' ' 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 。 。 。 。 。 。 Figure 9 ^ 1 There are 9 raw material feeding machines 5a to 3 raw materials feeding machine 5d to 5f, the first! == ejection plate (four) in the surface, 9 raw materials are fed to... 5a To 5i, the position of the spine / mouth. As shown in the figure, the nine raw material feeding machines are placed in the direction of the heart and the horizontal direction and are placed in the lateral direction (4) on the side of the main frame 1 a on the fixed side. Further, in Fig. 11, in the case where the steam ejecting plate is attached to the side of the solid-side main frame la, the aforementioned screw 12 is an opening through which the screw 12 is passed. In the eleventh diagram, the core vent hole 10 and the vent hole u shown in the first drawing of the vapor ejection plate 2a are omitted. The main frame la± on the fixed side is attached to the sub-plate 2 by means of a fixing screw 13 so as to be detachable. In the foam molding die 1 of the second embodiment, the sub-plate 2G is a plurality of sub-plates 2Qa to 2{)d which are group-shaped molding openings 22 having different numbers and shapes, and constitute a sub-plate of the group. 20a to 20d are attached to the main frame ia on the fixed side so as to be selectively mountable. Further, all of the sub-boards 20a to 20d have a rectangular plate-shaped member having a flat surface on the back and the back. The sub-plate 2〇a shown in Fig. 12 has a molding opening 22 partitioned by the closed side circumference 322267 38 201116394 surface 21, and the molding opening functions as a molding cavity 4 . Further, in the twelfth towel, the attachment plate 20a is attached to the main frame la, and the fixing screw 13 is an opening through which the fixing screw 13 passes, and the 30 series is connected to a hook of a construction machine such as a crane (not shown). When the attachment plate 2a is unloaded or moved, the hook 30 is attached to the opening 26 formed in the attachment plate 2A. Fig. 9 and Fig. 1 are diagrams showing the state in which the sub-plate 2〇&amp;= shown in Fig. 12 is mounted on the main frame la on the fixed side, and the sub-plate 2〇a is suitable for solidification. The state in which the vapor of the main frame la on the side of the crotch is ejected 2a is attached by the fixing screw 13. Fig. 13 is a plan view showing this state as viewed from the side of the sub-board 2〇a. As shown in the figure, in this example, the molding opening 22 formed in the sub-plate 2A is located in the nine raw material feeding machines 5a to 5i in the plane of the vapor ejection plate % shown in Fig. U. It belongs to the raw material discharge ports of the three raw material feeding machines 5b, 5e, and 5h in the horizontal middle row, and the three raw materials in the lower row in the figure are fed to the raw materials of 5a, 5d, 5g and the upper course. The machines 5c, 5f, and 5i lock the raw material discharge ports by the sub-plates 20a. In this way, the sub-board 2〇a is mounted on the fixed side of the main frame |R y.  After that, the main frame lb of the movable side is moved and clamped as shown in Fig. 1. As a result, the sub-plate 2〇a is a state in which it is held by the two vapor ejecting plates. Further, each of the two vapor ejecting plates 2a and 2b is a flat surface Α, β, and a space partitioned from the side peripheral surface 21 formed on the molding opening 22 of the sub-plate 2A, thereby forming a molded article. Cavity 4. After the mold is closed, as an example, the unexpanded particles as the raw material 322267 39 201116394 or pre-expanded into a volume expansion ratio are 2.  The low-expansion foaming particles in the range of 0 to 20 times are filled from the raw material feeding machine 5b, 5e, 5h, or supplied with heating steam, and the foaming ratio in the mold is 1.  Low-expansion foam moldings of 5 to 5 degrees. Further, in this example, the raw material supply may be carried out from all of the raw material feeders 5a to 5i from a predetermined raw material supply source. Even in this case, the raw material discharge ports of the three raw material feeding machines 5a, 5d, and 5g in the lower row and the three raw material feeding machines 5c, 5f, and 5i in the upper row are blocked by the sub-plate 20a. Therefore, no special obstacles will occur. However, from the viewpoints of easiness of molding processing and elimination of waste of raw materials, it is preferable that each of the raw material feeders 5a to 5i is provided at a position upstream of the raw material discharge port to stop the supply of the raw material. Fast switch-like blocking means, in this case, when the three raw feeding machines 5a, 5d, 5g arranged in the lower row and the three raw feeding machines 5c, 5f, 5i of the upper row are turned off In the case of the device, the supply of the raw materials is performed in a state in which the three raw material feeding machines 5b, 5e, and 5h of the middle row are opened and opened. In this case, if the quick-release devices of the left and right raw material feeding machines 5b and 5h are closed, only the raw material feeding machine 5e located at the center of the forming opening 22 which is a fan shape is supplied by the pressurized raw material. In the mold, it can realize the in-mold foam molding of the low-fold foam molding which is unbiased in quality. Therefore, the position of the raw material discharge port in the surface of the vapor ejection plate 20a or the auxiliary plate can be determined according to the manner in which any of the raw material feeding machines 5a to 5i can be located at the center of the molding opening 22 or in the vicinity thereof. The position of the forming opening 22 in the face 2a can be a very suitable aspect. 40 322267 201116394 As described above, a plurality of ejector pins 6 are mounted on the main frame la of the fixed side. Further, each of the ejector pins 6 is selected from any one of the aforementioned sub-boards 20a to 20d and attached to the main frame la, and any one of them can be inserted into the formed mold cavity 4 in a vapor jet manner. The position of the exit plate 2a is determined in the plane. In the above example, after the mold is opened, if it is started in the plane of the vapor ejection plate 2a, it is placed at one or a plurality of positions which are opposite to the molding opening 22 formed on the sub-plate 20a. With the tip 6, the mold can be demolded (re 1 ease). An ejection tip 6 (not shown) may be disposed in the supply tube of each of the raw material feeding machines 5a to 5i. In this case, after the mold is opened, the ejection of the molded article can be performed by starting the ejection tip 6 which is attached to any or all of the raw material feeding machines 5 for supplying the raw material. Fig. 14 shows another form of the sub-board 20. The entire shape of the sub-plate 20b is the same as that of the sub-plate 20a shown in Fig. 12, but two molding openings are formed on the left and right sides to form a fan shape as compared with the molding opening 22 being small. 22b. Fig. 15 is a view showing a state in which the sub-plate 20b is superposed on the surface of the vapor ejecting plate 2a of the main frame 1a on the fixed side shown in Fig. 11, and is viewed from the side of the sub-plate 20b. As can be seen from the figure, the raw material feeding machine 5c of the upper left among the above-mentioned 9 raw material feeding machines 5a to 5i, and the raw material feeding machine 5a of the lower left, and the raw material feeding machine 5i of the upper right, and the lower right side The raw material discharge port of the raw material feeding machine 5g can be formed in the surface of the attachment plate 20b so as to be located at the center of each of the molding openings 22b forming the fan shape. Further, the raw material discharge ports of the other five raw material feeding machines 5b, 5d, 5e, 5f, and 5h are closed by the sub-plate 41 322267 201116394 20b, and the sub-board 2〇b is used without the sub-plate 2〇a. Installed on the fixed side = frame 1. Then, in the same way as in the case of the attached board; 1 processing. In this case, since the raw materials are supplied to the four molded product cavities 4 formed by the four molding openings at the same time, the molds of the four low-expansion moldings are subjected to mold release in the molded article by i. Then, the top 6 is used corresponding to the one. &quot; 'Into 1 ° ° acupoints and fixed rose ^ 16 figure shows the state of the vapor ejection shown in Figure 11 from the side of the attached plate. : The same applies, except for the sub-board 22 shown in the figure of ^=:2. The small shoulder-like shoulder is formed in the same manner as the sub-plate 2 is formed. In the middle molding, it can be seen from the figure that the raw materials of the machine 5a to 5i and the port 22c' are ejected from the raw materials of the original raw materials 5d, 5e and 5e in the center. Two open: six raw material feeding machines for forming the opening 22c of the fan shape = f plane. Further, the other material discharge ports which are closed by the sub-plate 2c are formed by the following: = the case of the plate 2〇C, since the pair is simultaneously used by 3! The raw material is supplied to the molding cavity 4 in the next molding process, so that the foam is molded. (7) The mold of the three low-expansion moldings is carried out. Fig. 17 is a diagram showing the state of the steam ejection plate 2a shown in the U-th diagram of the 322267 42 201116394. The overall shape of the sub-plate 20d is the same as that of the sub-panel 20a shown in Fig. 12, but the left and right are respectively formed with six molding openings 22d each having a fan shape smaller than that of the molding opening 22. . As can be seen from the figure, in the sub-plate 20d, the six molding openings 22d are sprayed with the raw materials of the left column 5a to 5c and the right column 5g to 5i among the above-mentioned nine raw material feeding machines 5a to 5i. The outlet can be located in the center of each of the forming openings 形成 which form the shape of the fan, and the knives are formed in the plane of the sub-plate 20d. The three raw material feeding machines 5 in the center column (the raw material discharge ports of 1 to 5f are closed by the sub-plate 2〇d. In the case of using the above-mentioned sub-board 20d, since 6 pairs are simultaneously The raw materials are supplied into the six molding product cavities 4 formed by the opening 22d, so that the in-mold foam molding of the six low-expansion molded products can be performed by one treatment. ' As can be seen from the above description, In the foam molding die ι of the second embodiment, any one of the sub-plates constituting the sub-plate group is selected, for example, as a result of any of the above-mentioned sub-plates 2Ga to 2Gd, and the second process can be used. At the same time, one or two or more foam molded articles having different shapes and thicknesses are foamed, and high productivity can be obtained. Further, in the above example, the cymbal sub-plate 2〇&amp is used. To the way of forming the molding cavity 4, only the auxiliary plates of the same shape can be attached to the main frame la, lb of the fixed side and the moving side to 2〇d, and the 2 sub-plates are clamped. The Japanese temple merges to form one molding cavity 4. [Simplified illustration] 322267 43 201116394 1st chart The graph of the stress-strain curve of the thrust transmitting member using the thrust transmitting member (Example) of the present invention and the comparative example is shown. Fig. 2 is a view showing the electron micrograph of the bubble of the member using the thrust of the embodiment. 2 (a) is the first embodiment, the second figure (8) is the embodiment 2, the second figure (c) is the embodiment 3, and the second figure ((1) is the electron microscope photograph of the embodiment *. Fig. 3 shows A cross-sectional view of an embodiment of a foam molding die according to a first aspect of a foam molding die using the thrust transmitting member of the present invention. Fig. 4 is a view showing attachment of a sub-plate in the foam molding die of the first embodiment. Fig. 5 is a plan view showing an example of a main frame of the foam molding die of the first embodiment viewed from the side where the two vapor ejection plates are mounted. Fig. 6 is a view showing another example of the main frame. Fig. 7 is a view corresponding to Fig. 3 of another example of the main frame. Fig. 8(a) to (c) are perspective views showing several examples of the sub-board. Fig. 9 shows a suitable manufacturing method. Foam molding mold for thrust conveying member of the present invention A cross-sectional view of an embodiment of a foam molding die according to a second aspect. Fig. 10 is an enlarged cross-sectional view showing the vicinity of an ampoule portion of a sub-plate in the foam molding die of the second embodiment. A plan view of an example of a vapor ejection plate in a foam molding die of the embodiment. However, the illustration of the vapor ejection port is omitted. Fig. 12 is a perspective view showing an example of the sub-plate. 44 322267 201116394 Figure 13 shows the side of the sub-panel The attached plate shown in Fig. 12 is a plan view showing a state in which the steam nozzle is shown in Fig. 3. Fig. 14 is a perspective view showing another example of the sub-plate. Fig. 15 is a view from the side of the sub-plate. A plan view in which the sub-plate shown in the 14th mesh is superimposed on the vapor ejecting plate shown in Fig. 11 is seen. Fig. 16 is a plan view showing a state in which another example of the sub-plate is superposed on the vapor ejecting plate shown in Fig. 11 as seen from the side of the sub-plate. Fig. 17 is a plan view showing a state in which another example of the sub-plate is superposed on the vapor ejecting plate shown in Fig. 11 as seen from the side of the sub-plate. Fig. 18 is a cross-sectional view showing a foam molding die known in the prior art. Fig. 19 is a perspective view showing the sub-plate used for explaining the foam molding die shown in Fig. 18. Fig. 20 is a view showing an example of the arrangement of the propulsion pipe in the propulsion method. Fig. 21 is a view showing an example of the arrangement of the propulsion pipe in the propulsion method. Fig. 22 is a view showing the specific gravity described in Patent Document 1. The three kinds of thrusts convey the stress-strain curve of the member. Fig. 23 shows the stress-strain curve in the foamed resin molded article. [Main component symbol description] 1 The first shape, the foam molding die of Fe 1 a, 1 b main frame 2a, 2b steam ejection plate 322267 45 201116394 4 molding product cavity 5, 5a to 5i raw material feeding machine 6 ejection tip 7a, 7b back plate 8 cylindrical or cylindrical reinforcing support 9 Sealing material 10 Core venting hole 11 Venting hole 12 Fixing screw 13 Fixing screw 14 Opening 15 Vapor supply port 20, 20a to 20c Sub-board 21 Closed side peripheral faces 22, 22b, 22c, 22d Forming opening (molding hole) 23 protruding portion 24 of the main frame of the sub-panel through hole 25 opening 30 The connecting portion of the hook 40 and the rear surface of the vapor ejecting plate is a linear plate-shaped reinforcing body 42 formed in the reinforcing support Vapor passage port 100 second shape The foam molding mold 46322267

Claims (1)

201116394, the scope of application for patents: In the material mold, the foaming particles are foamed to obtain 3 knives, which are characterized by a density of Q17 and an average bubble diameter of hereinafter. *6?g/ (4) The thrust transmission material described in item 1 (4), in which the viscous viscous rate is 70% or more. 広=Please refer to the patent (4) item or item 2 for the thrust transmission member, granule: the foaming particle A foaming species made of polystyrene and resin, which is characterized by: any of items 1 to 3 at the front end and/or the rear end. The thrust is conveyed only 20%: the mold is attached to the front side of the two main frames, and the flat steam ejecting plate is installed on the front side of the two main frames, and the hot steam ejecting plate and the aforementioned main body are respectively installed. Reinforcement struts are arranged between the frames, and at least the side of the main (four) side is mounted in a manner of (4) disassembly to form a side circumference which is held by the two vapor ejecting plates during the mold clamping and which separates the molded molds eight. The auxiliary plate of the opening, and the molding cavity is formed into a plane before being formed into the front surface of the two steam nozzles a foam molding die formed between the side and the side peripheral surface of the molding opening formed on the sub-plate, wherein the foam molding plate is positioned as opposed to the aforementioned The reinforcing support body on the back side of at least the region of the cavity of the molded product of the vapor ejection plate, and the portion having the portion in contact with the back surface of the vapor ejection plate is formed into a line shape. 322267 201116394 A slab-shaped reinforcing support. 6. The foam molding die according to claim 5, wherein the plurality of sheets of the reinforcing member in the form of the plate are opposite to the vapor of the molded product. The back side of the ejecting plate is provided with a space therebetween. 7. The foam molding die according to claim 5 or 6, which is formed in such a manner as to cover the full width of the main frame. The foaming molding die according to any one of the items 5 or 7 of the present invention, which is characterized in that, when the attachment plate is attached to the main frame, the main assembly is used. The frame protrudes to the outside The sub-layer of the shape of the region. The method of forming the structure of the thrust-transmitting member is characterized in that the unexpanded particles are foamed to a volume expansion ratio in the range of 2.0 to 20 times. The low-expansion foaming particles are filled in the cavity of the molded product of the foam molding die according to any one of the fifth to eighth aspects of the patent application, and the thrust transmission of the low-expansion foam molding in the mold is conveyed. 10. A foam molding die is attached to the front side of the two main frames, and a flat steam ejecting plate is attached to the front side of the main frame, at least one of the main frame sides, A sub-plate having a molding opening for sandwiching the side periphery of the molding cavity between the two vapor ejecting plates at the time of mold clamping is attached, and the molding cavity is formed as a foam molding die formed on a front side of each plane of each of the two vapor ejecting plates and a space surrounded by a side peripheral surface of the molding opening formed on the sub-board, characterized in that: on the main frame of either side According to the aforementioned steam ejecting plate in-plane function In the way of the raw material discharge port, 2 322,267 multiple raw material feeding machines are installed, and the front auxiliary plate group is composed of two or more sub-boards which can be assembled and disassembled to form two or more forming openings. The inner 隹 并 并 并 并 并 并 并 并 并 并 并 并 并 并 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主The method of determining the position of the above-mentioned = discharge port in each of the sub-boards, or determining that the ih is in the position of the c-th position of the patent application range, and forming the above-mentioned auxiliary crucible, the bubble forming mold, which is formed on the formation of the horse shape= The molding opening formed on the sub-board is a fan-shaped molding door opening, and the material ejection port can be located in the material forming the surface of the board to spray the sweat port: the center 1 is determined by the above-mentioned molding in the steam ejection surface or The aforementioned sub-board 12. As claimed in the patent scope, the foam molding die described in the jlh item or the eleventh item is selected in the "subsidiary plate group month", and then any one can enter the main frame of w situation The shape, and the manner in which the molding of the molded article formed here is in the position of the vapor ejection plate surface. 13. The foam molding die according to claim 12, wherein the ejector tip is provided in the raw material feeding machine. A method for molding a thrust transmitting member, characterized in that: the unexpanded particles or the low-expansion foamed particles which are foamed into a volume expansion ratio in the range of 2.0 to 20 times are filled in the application In the molded product of the foam molding die according to any one of the above-mentioned items, the embossing of the molded article of the invention is carried out in the mold hole of 322267 201116394. 4 322267