JPS6354235A - Wear resistant tube and manufacture thereof - Google Patents

Wear resistant tube and manufacture thereof

Info

Publication number
JPS6354235A
JPS6354235A JP19811486A JP19811486A JPS6354235A JP S6354235 A JPS6354235 A JP S6354235A JP 19811486 A JP19811486 A JP 19811486A JP 19811486 A JP19811486 A JP 19811486A JP S6354235 A JPS6354235 A JP S6354235A
Authority
JP
Japan
Prior art keywords
tube
wear
liner
pipe
resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19811486A
Other languages
Japanese (ja)
Inventor
Akira Mori
森 翠
Masaaki Tanaka
正明 田中
Tatsuo Yoshida
龍生 吉田
Shinichi Arayoshi
信市 新吉
Yutaka Endo
豊 遠藤
Hideo Tsuchide
土手 英夫
Suezo Enomoto
榎本 末蔵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAWAJU KOJI KK
KURAHASHI RUBBER KOGYO KK
Original Assignee
KAWAJU KOJI KK
KURAHASHI RUBBER KOGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KAWAJU KOJI KK, KURAHASHI RUBBER KOGYO KK filed Critical KAWAJU KOJI KK
Priority to JP19811486A priority Critical patent/JPS6354235A/en
Publication of JPS6354235A publication Critical patent/JPS6354235A/en
Pending legal-status Critical Current

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  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE:To improve the wear resistance of the inner surface of a tube by a method wherein a linear produced by fixing ceramic pieces to a rubber plate is inserted in the interior of the tube having unit length and, after that, vulcanized so as to make the linear and the tube into an integral body. CONSTITUTION:Ceramic pieces 5, 5... are fixed to a rubber plate 6 by rubber- based adhesive or the like so as to produce a liner 8 in order to insert said liner 8 in the interior of a tube 3 under the condition that epoxy-based adhesive or the like is applied onto the outer surface of the liner 8. The tube 3 is sealed by fixing cover plates 9 and 9 to flanges 2 and 2 provided at both the ends of the tube 3. The rubber plate 6 and the tube 3 are made into an integral body by curing the linear 8, which is expanded under pressure with high pressure gas supplied from a gas charging device 10. After that, the resultant wear resistant tube 1 is set in an autoclave 11 so as to be subjected to the predetermined vulcanizing treatment.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 開示技術は工場廃液のスラリー等の輸送配管に用いる管
の耐摩耗性を向上させる技術分野に属する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to the technical field of improving the abrasion resistance of pipes used for transporting factory waste slurry and the like.

く要旨の概要〉 而して、この出願の発明はスラリー輸送配管等の管の内
面にセラミック等の耐摩耗材が一様にライニングされて
いる耐摩耗管、及び、その製造方法に関する発明であり
、特に、予め所定の方形のユニットサイズのゴムプレー
トに対し、平均して密集して多数のセラミックピースを
接着剤等を介して固着してライナーを形成し、該ライナ
ーが円筒状等の筒体に形成されて管内に相対的に挿入さ
れて管処理により一体化されている耐摩耗管、及び、そ
の製造方法に係る発明である。
Summary of the gist> The invention of this application relates to a wear-resistant pipe, such as a slurry transport pipe, whose inner surface is uniformly lined with a wear-resistant material such as ceramic, and a method for manufacturing the same. In particular, a liner is formed by fixing a large number of ceramic pieces densely on average to a rubber plate of a predetermined square unit size using an adhesive, etc., and the liner is formed into a cylindrical body. The invention relates to a wear-resistant tube that is formed, relatively inserted into the tube, and integrated by tube processing, and a method for manufacturing the same.

〈従来技術〉 周知の如く、プラントの各種流体の輸送配管や構造物、
或は、情報伝達用等必らゆる方面に配管が用いられてい
るが、一般的に管は振動や回転等の機械的動作をしない
施設材として用いられる態様が多いために、初期施工セ
ットされると経時的に交換等しない場合が多く、したが
って、その耐久性が極めて重要視されている。
<Prior art> As is well known, various fluid transportation piping and structures in plants,
Alternatively, piping is used in all directions, such as for information transmission, but in general, pipes are often used as facility materials that do not perform mechanical movements such as vibration or rotation, so they are not included in the initial construction set. In many cases, they are not replaced over time, and therefore, their durability is extremely important.

而して、これらの配管のうち工業排水のスラリー輸送管
等においては耐熱性や耐蝕性に比しその耐摩耗性が大き
な比重を有している。
Among these pipes, for example, slurry transport pipes for industrial wastewater, wear resistance has a greater specific gravity than heat resistance and corrosion resistance.

かかる耐摩耗性を具備するために、耐摩耗性に優れた、
例えば、外管に炭素鋼を用い、内管に耐摩耗性に優れた
高マンガン鋼やステンレス鋼等を用いたり、耐摩耗性を
有するゴムポリウレタン等のエラストマーをライニング
したりしている。
In order to have such abrasion resistance,
For example, carbon steel is used for the outer tube, high manganese steel or stainless steel with excellent wear resistance is used for the inner tube, or lining is made of an elastomer such as rubber polyurethane that has wear resistance.

〈発明が解決しようとする問題点〉 そして、かかる耐摩耗二重管は耐摩耗性には優れている
ものの、管製造時に二重管にすることは可能であっても
、望ましい程度の耐摩耗性を有しているとは言えないき
らいがあり、そこで、管内部にセラミックライニングを
施すようにする技術もあるが、かかるセラミックライニ
ングは直管の場合であっても、管製造後のライニングを
施さねばならず、したがって、単位長さが制限されると
いう不具合があり、曲り管等では殆ど製造不可能である
という不都合さがあり、結果的にコスト高になるという
不利点があった。
<Problems to be Solved by the Invention> Although such wear-resistant double pipes have excellent wear resistance, even if it is possible to make double pipes during pipe manufacturing, it is difficult to achieve the desired level of wear resistance. Therefore, there is a technique to apply a ceramic lining to the inside of the pipe. Therefore, there is a problem that the unit length is limited, and there is a problem that it is almost impossible to manufacture a curved pipe or the like, and as a result, there is a problem that the cost is high.

又、セラミック材そのものをライニングした場合には衝
撃吸収性に劣り、更に、使用中に管の曲り変形や膨張等
に追従出来ないという欠点があった。
Furthermore, when the ceramic material itself is used as the lining, the shock absorbing properties are poor, and furthermore, there is a drawback that it cannot follow the bending deformation or expansion of the tube during use.

又、ゴム等のエラストマーにセラミックを接着剤を介し
て接着し、所定長さの管の内面に張り付けすることも考
えられるが、これまでの技術では充分な接着力を与える
にはユニット管の管長や管径に制約があるという不都合
さがあり、実用に耐えるだけの長さの管にライニングす
ることは不可能であった。
It is also possible to bond ceramic to an elastomer such as rubber using an adhesive and attach it to the inner surface of a pipe of a predetermined length, but with conventional technology, it is difficult to provide sufficient adhesive force due to the length of the unit pipe. There are disadvantages such as restrictions on pipe diameter and pipe diameter, and it has been impossible to line a pipe long enough to withstand practical use.

〈発明の目的〉 この出願の発明の目的は上述従来技術に基づく管内面に
セラミック等の耐摩耗材をライニングする問題点を解決
すべき技術的課題とし、所定長の管に対し耐摩耗性に優
れたセラミックを用いてしかも衝撃吸収性を付与し、直
管、曲り管に対してもライニングすることが出来るよう
にして各種産業における流体輸送技術利用分野に益する
優れた耐摩耗管、及び、その製造方法を提供せんとする
ものである。
<Object of the Invention> The object of the invention of this application is to solve the problem of lining the inner surface of a tube with a wear-resistant material such as ceramic based on the above-mentioned prior art, and to provide a pipe with excellent wear resistance for a given length. An excellent abrasion-resistant pipe that is made of ceramic and has shock absorbing properties, and can be lined with straight and bent pipes, thereby benefiting the field of fluid transport technology in various industries. The purpose is to provide a manufacturing method.

〈問題点を解決するための手段・作用〉上述目的に沿い
先述特許請求の範囲を要旨とするこの出願の発明の構成
は前述問題点を解決するために、方形の所定サイズのユ
ニットゴムプレートに対し密集状に方形、或は、ボール
状のセラミックピースを接着剤等により固着してライナ
ーを形成し、その後、該ライナーを円筒状等の筒体に形
成し、その後、直管、或は、曲り管等の所定形状のユニ
ット長の管内部にゴムプレートの弾性を利用して相対的
に挿入し、オートクレーブ等により加硫処理して一体化
し、スラリー等の流体を流過させると、ライニングの内
面の各セラミックピースがその高い耐摩耗性を発揮して
管内面の耐摩耗性を向上させ、又、土砂、砂利等の流過
に伴う衝撃エネルギーに対してはゴムプレートがこれを
吸収し、剥離や切削等が生じないようにした技術的手段
を謁したものである。
<Means/effects for solving the problem> In accordance with the above-mentioned object, the structure of the invention of this application, which is summarized in the above-mentioned claims, is to solve the above-mentioned problem by forming a square unit rubber plate of a predetermined size. On the other hand, a liner is formed by tightly fixing rectangular or ball-shaped ceramic pieces with an adhesive or the like, and then the liner is formed into a cylindrical body, and then a straight pipe or The elasticity of the rubber plate is used to insert it relatively into a pipe of a predetermined unit length, such as a bent pipe, and the lining is vulcanized and integrated in an autoclave, etc., and a fluid such as slurry is passed through it. Each ceramic piece on the inner surface exhibits high abrasion resistance, improving the abrasion resistance of the inner surface of the tube, and the rubber plate absorbs the impact energy caused by the flow of earth, sand, gravel, etc. This is a technical measure that prevents peeling, cutting, etc. from occurring.

〈実施例〉 次に、この出願の発明の実施例を図面を参照して説明す
れば以下の通りである。
<Embodiments> Next, embodiments of the invention of this application will be described below with reference to the drawings.

第1図に示す実施例において、1はこの出願の発明の1
つの要旨を成す耐摩耗管であり、両端にフランジ2を溶
接して有する管3の内面の全領域には所定厚さのゴムラ
イニング4が加硫処理されて一体的に固定されており、
更に、該ゴムライニングの内面には多数の設定サイズの
方形のセラミックピース5.5・・・が一定密度で固着
ライニングされている。
In the embodiment shown in FIG. 1, 1 is 1 of the invention of this application.
The tube 3 has flanges 2 welded to both ends, and a rubber lining 4 of a predetermined thickness is vulcanized and integrally fixed to the entire inner surface of the tube 3.
Furthermore, the inner surface of the rubber lining is lined with a large number of rectangular ceramic pieces 5.5 of predetermined sizes fixed at a constant density.

而して、当該耐摩耗管1を工場廃液のスラリー輸送に供
すると、スラリー中の固体粒子がその流れのエネルギー
にのって激しい衝撃荷重を管1の内面に印加するが、均
一にライニングされている多数のセラミックピース5.
5・・・により強い耐切削性や耐摩耗性が発揮されて管
内面の損耗や剥離等が生ぜず、又、衝撃荷重はゴムライ
ニングにより吸収される。
When the wear-resistant pipe 1 is used to transport slurry of factory waste liquid, the solid particles in the slurry are carried by the energy of the flow and apply a severe impact load to the inner surface of the pipe 1, but the inner surface of the pipe 1 is not uniformly lined. A large number of ceramic pieces 5.
5... exhibits strong cutting resistance and abrasion resistance, so that wear and peeling of the inner surface of the tube does not occur, and impact loads are absorbed by the rubber lining.

そして、稼動中における熱挙動のよる管1の長さ方向、
及び、径方向の伸縮は管3に対する加硫処理を介しての
ゴムライニング4により充分に吸収され、耐摩耗管1の
耐久性は著しく向上し、殆ど保守点検整備の長期間のメ
ンテナンスは不要になり、又、交換も不必要となる。
The length direction of the tube 1 due to its thermal behavior during operation,
Also, the expansion and contraction in the radial direction is sufficiently absorbed by the rubber lining 4 through the vulcanization treatment of the tube 3, and the durability of the wear-resistant tube 1 is significantly improved, and long-term maintenance such as maintenance and inspection is almost unnecessary. This also eliminates the need for replacement.

而して、当該耐摩耗管1の製造は第5〜12図に示す様
になされ、まず、所定厚さのゴムプレート6を耐摩耗管
1の内径、及び、長さのユニットゴムプレート6に第5
図に示す様に成形し、一方、第6図に示す様な所定サイ
ズの方形の多数のセラミックピース5.5・・・をゴム
系接着剤等により第7図に示す様に均一な密集状態で張
り付は固定してライナーを形成し、その後、該ライナー
7をゴムプレート6を外側にして縁部をゴム系接着剤等
により接合して管3の内径よりやや小さい筒体8に形成
し、その後、該ライナー8の外面にエポキシ系接着剤等
を塗布して第9図に示す様に管3内部に挿入していく。
The abrasion resistant tube 1 is manufactured as shown in FIGS. Fifth
On the other hand, a large number of rectangular ceramic pieces 5.5 of a predetermined size as shown in Fig. 6 are formed into a uniformly packed state as shown in Fig. 7 using a rubber adhesive or the like. Then, the liner 7 is fixed with the rubber plate 6 outside and the edges are joined with a rubber adhesive or the like to form a cylindrical body 8 that is slightly smaller than the inner diameter of the pipe 3. Thereafter, an epoxy adhesive or the like is applied to the outer surface of the liner 8, and the liner 8 is inserted into the tube 3 as shown in FIG.

この場合、当該実施例では管3は直管であるが、回り管
であってもゴムプレート6の弾性により曲り形状を吸収
し確実に両者は相対挿入される。
In this case, although the tube 3 is a straight tube in this embodiment, even if it is a round tube, the elasticity of the rubber plate 6 absorbs the bent shape and ensures that the two are inserted relative to each other.

その後、管3の両端のフランジ2.2に対し蓋プレート
9.9を固定して密封し、一方の蓋プレート9に接続さ
れであるガス封入装置10により所定の高圧ガスを供給
してライナー8を加圧膨張させて養生することによりラ
イナー8のゴムプレート6と管3は一体化される。
Thereafter, the lid plate 9.9 is fixed and sealed to the flanges 2.2 at both ends of the tube 3, and a predetermined high pressure gas is supplied to the liner 8 by a gas filling device 10 connected to one lid plate 9. By expanding and curing under pressure, the rubber plate 6 of the liner 8 and the tube 3 are integrated.

その後、蓋プレート9.9を取り外し、第11図に示す
様に耐摩耗管1をオートクレーブ11中にセットして所
定の加硫処理を行い、第12図に示す、即ち、第1図に
示す耐摩耗管1を得ることが出来る。
Thereafter, the lid plate 9.9 is removed, and the wear-resistant tube 1 is set in the autoclave 11 as shown in FIG. 11 and subjected to a prescribed vulcanization treatment, as shown in FIG. A wear-resistant tube 1 can be obtained.

又、第2図に示す実施例は摩耗の激しい管3の入口部に
於いてはアングルタイプのセラミックピース5′を設け
てフランジ2と一体的に接続したり、第3図に示す様に
アングル状のセラミックピース51を管3の端部に臨ま
せて設けるようにしても良い。
In addition, in the embodiment shown in FIG. 2, an angle type ceramic piece 5' is provided at the inlet of the pipe 3, which is subject to severe wear, to connect it integrally with the flange 2, or an angle type ceramic piece 5' is provided at the inlet of the pipe 3, which is subject to severe wear. A shaped ceramic piece 51 may be provided facing the end of the tube 3.

又、セラミックピースについては、第1.2.3図に示
すプレート状のものでも良いが、第4図に示す様に所定
サイズのボール状のものを用いて、その後に隣接させた
密集タイプのライニングにすることも可能である。
Regarding the ceramic pieces, the plate-shaped ones shown in Figure 1.2.3 may be used, but as shown in Figure 4, ball-shaped pieces of a predetermined size are used, and then closely spaced type ceramic pieces are used as shown in Figure 4. It is also possible to use lining.

尚、この出願の発明の実施態様は上述各実施例に限るも
のでないことは勿論でおり、例えば、管径が長さ方向に
おいて後段にされたりテーパ状にされたりする耐摩耗管
についても実施可能である等種々の態様が採用可能であ
る。
It goes without saying that the embodiments of the invention of this application are not limited to the above-mentioned embodiments, and can also be implemented for wear-resistant pipes in which the pipe diameter is made laterally or tapered in the length direction, for example. Various aspects can be adopted, such as.

又、適用対象はスラリー輸送管のみならず、潅概用の放
流管等に用いることも可能であることは勿論である。
Moreover, it goes without saying that the present invention can be applied not only to slurry transport pipes but also to irrigation discharge pipes and the like.

〈発明の効果〉 以上、この出願の発明によれば、工場プラントのスラリ
ー輸送管や潅猟用の土砂転石を含有する泥水輸送の放流
管等に使用する配管用の耐摩耗管において、管の内部に
ゴムライニングを加硫処理して張り付け、その内部に多
数のプレート状等のセラミックピースを一体的に固着さ
せであることにより、土砂や転石等の衝撃エネルギーが
大きいものに対しても切削抵抗や耐摩耗抵抗が大きく、
ライニングの損耗や剥離がなく耐久性が向上するという
優れた効果が秦される。
<Effects of the Invention> As described above, according to the invention of this application, wear-resistant pipes for pipes used for slurry transport pipes in factories, discharge pipes for transporting muddy water containing soil and boulders for irrigation, etc. By attaching a vulcanized rubber lining to the inside and integrally fixing a large number of ceramic pieces such as plates inside, it has excellent cutting resistance even against objects with high impact energy such as earth and sand and boulders. and high abrasion resistance,
It has the excellent effect of improving durability without wear and tear of the lining.

又、ゴムライニングが添接されていることにより、衝撃
荷重を吸収したり、稼動中の熱挙動による軸方向、径方
向の伸縮を吸収することが出来、したがって、経時的に
相当期間の間保守点検整備や交換を行わなくても良く、
結果的にコストダウンを図ることが出来るという優れた
効果が秦される。
In addition, the rubber lining can absorb shock loads and axial and radial expansion and contraction due to thermal behavior during operation, thus making maintenance easier over time. There is no need for inspection, maintenance or replacement.
As a result, the excellent effect of being able to reduce costs is achieved.

又、その製造方法においては所定サイズのゴムプレート
に対し多数のセラミックピースを接着剤を介して張り付
けしてライナーとして断面円形等の管断面に相似する筒
体を形成し、管内に挿入することが出来るために、管が
直管のみならず曲り管等の変形管であっても、ライナー
が追従して相対挿入することが出来、したがって、管の
形状にとられれずに相当長い管長に対してライニングす
ることが出来るという優れた効果が秦される。
In addition, in the manufacturing method, a large number of ceramic pieces are pasted with adhesive to a rubber plate of a predetermined size to form a liner with a circular cross section similar to that of the pipe, and the liner is inserted into the pipe. Because of this, even if the pipe is not only a straight pipe but also a deformed pipe such as a bent pipe, the liner can follow and be inserted relative to the pipe. Qin has the excellent effect of being able to line.

そして、オートクレーブ等により加熱加硫処理すること
により、強固に張り付けられた耐摩耗ライニングを有す
る耐摩耗管が得られる効果がある。
Then, by heating and vulcanizing in an autoclave or the like, a wear-resistant tube having a strongly attached wear-resistant lining can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの出願の発明の実施例であり、第1図は耐摩耗
管の1実施例の部分拡大断面図、第2.3.4図は耐摩
耗管の他の実施例の断面図、第5図以下は耐摩耗管の製
造プロセスでおり、第5図はゴムプレートの平面図、第
6図はセラミックピース群の平面図、第7図はライナー
の平面図、第8図は筒体のライナーの斜視図、第9図は
筒体の管に対する相対挿入側面図、第10図は管内に於
ける筒体の拡張側面図、第11図は耐摩耗管の加硫処理
側面図、第12図は耐摩耗管の全体概略側面図である。 3・・・管、  5・・・耐摩耗材、 4・・・ゴムライニング、  5・・・セラミックピー
ス、6・・・ゴムプレート、  8・・・ライナー、1
・・・耐摩耗管 第1図  3−衣  5−砂≧灯 コ 第2図 第3図
The drawings show embodiments of the invention of this application; FIG. 1 is a partially enlarged sectional view of one embodiment of the wear-resistant tube, FIG. 2.3.4 is a sectional view of another embodiment of the wear-resistant tube, and FIG. Figures 5 and below show the manufacturing process of the wear-resistant tube. Figure 5 is a plan view of the rubber plate, Figure 6 is a plan view of the ceramic piece group, Figure 7 is a plan view of the liner, and Figure 8 is a diagram of the cylindrical body. A perspective view of the liner, FIG. 9 is a side view of the cylindrical body relative to the tube, FIG. 10 is an expanded side view of the cylindrical body inside the tube, FIG. 11 is a side view of the vulcanization treatment of the wear-resistant tube, and FIG. The figure is an overall schematic side view of the wear-resistant tube. 3... Pipe, 5... Wear-resistant material, 4... Rubber lining, 5... Ceramic piece, 6... Rubber plate, 8... Liner, 1
...Abrasion resistant tube Fig. 1 3-Clothing 5-Sand≧Lamp Fig. 2 Fig. 3

Claims (2)

【特許請求の範囲】[Claims] (1)管内面に耐摩耗材がライニングされている耐摩耗
管において、管内面にゴムライニングが張設され該ゴム
ライニングの内面に多数のセラミックピースが固着され
ていることを特徴とする耐摩耗管。
(1) A wear-resistant tube whose inner surface is lined with a wear-resistant material, characterized in that the inner surface of the tube is covered with a rubber lining and a large number of ceramic pieces are fixed to the inner surface of the rubber lining. .
(2)管内面に耐摩耗材がライニングされている耐摩耗
管の製造方法において、ユニットサイズのゴムプレート
に多数のセラミックピースを固着してライナーを形成し
、次いで該セラミックピース側を内側にして該ライナー
を筒体に形成し、その後筒体ライナーを管の内面に相対
挿入して加硫処理を介してライニングするようにしたこ
とを特徴とする耐摩耗管の製造方法。
(2) In a method for manufacturing a wear-resistant tube in which the inner surface of the tube is lined with a wear-resistant material, a large number of ceramic pieces are fixed to a unit-sized rubber plate to form a liner, and then the liner is placed with the ceramic pieces side inside. 1. A method for manufacturing a wear-resistant tube, comprising forming a liner into a cylindrical body, and then inserting the cylindrical liner relatively into the inner surface of the tube and lining it through a vulcanization process.
JP19811486A 1986-08-26 1986-08-26 Wear resistant tube and manufacture thereof Pending JPS6354235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19811486A JPS6354235A (en) 1986-08-26 1986-08-26 Wear resistant tube and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19811486A JPS6354235A (en) 1986-08-26 1986-08-26 Wear resistant tube and manufacture thereof

Publications (1)

Publication Number Publication Date
JPS6354235A true JPS6354235A (en) 1988-03-08

Family

ID=16385702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19811486A Pending JPS6354235A (en) 1986-08-26 1986-08-26 Wear resistant tube and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS6354235A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104441852A (en) * 2014-12-10 2015-03-25 平顶山华瑞锦橡耐磨材料有限公司 Layered wear-erosion resistant rubber lining plate and preparation method thereof
CN104476860A (en) * 2014-12-10 2015-04-01 平顶山华瑞锦橡耐磨材料有限公司 Rubber liner plate with layer structure and preparation method of rubber liner plate
CN106823256A (en) * 2017-03-17 2017-06-13 河南科技大学 A kind of non-standard barbell of body-building
CN107020779A (en) * 2017-04-17 2017-08-08 穆琳瑛 A kind of compound wear-resistant rubber liner and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109823A (en) * 1983-11-19 1985-06-15 三井物産株式会社 Manufacture of ceramic lining pipe
JPS60154035A (en) * 1984-01-20 1985-08-13 Sanwa Gomme Kogyo Kk Manufacture of ceramic-lined tube
JPS60161132A (en) * 1984-02-01 1985-08-22 Sanwa Gomme Kogyo Kk Manufacture of ceramic lined pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109823A (en) * 1983-11-19 1985-06-15 三井物産株式会社 Manufacture of ceramic lining pipe
JPS60154035A (en) * 1984-01-20 1985-08-13 Sanwa Gomme Kogyo Kk Manufacture of ceramic-lined tube
JPS60161132A (en) * 1984-02-01 1985-08-22 Sanwa Gomme Kogyo Kk Manufacture of ceramic lined pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104441852A (en) * 2014-12-10 2015-03-25 平顶山华瑞锦橡耐磨材料有限公司 Layered wear-erosion resistant rubber lining plate and preparation method thereof
CN104476860A (en) * 2014-12-10 2015-04-01 平顶山华瑞锦橡耐磨材料有限公司 Rubber liner plate with layer structure and preparation method of rubber liner plate
CN106823256A (en) * 2017-03-17 2017-06-13 河南科技大学 A kind of non-standard barbell of body-building
CN107020779A (en) * 2017-04-17 2017-08-08 穆琳瑛 A kind of compound wear-resistant rubber liner and preparation method thereof

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