JPH01272687A - Semifluid sealing material - Google Patents
Semifluid sealing materialInfo
- Publication number
- JPH01272687A JPH01272687A JP10316388A JP10316388A JPH01272687A JP H01272687 A JPH01272687 A JP H01272687A JP 10316388 A JP10316388 A JP 10316388A JP 10316388 A JP10316388 A JP 10316388A JP H01272687 A JPH01272687 A JP H01272687A
- Authority
- JP
- Japan
- Prior art keywords
- sealing material
- weight
- synthetic fibers
- oil
- acicular
- 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
Links
- 239000003566 sealing material Substances 0.000 title claims abstract description 72
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 30
- 239000012209 synthetic fiber Substances 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 12
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 12
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011256 inorganic filler Substances 0.000 claims abstract description 10
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 21
- 238000007789 sealing Methods 0.000 abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 14
- 239000010425 asbestos Substances 0.000 abstract description 10
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 7
- 239000010721 machine oil Substances 0.000 abstract description 5
- 239000004952 Polyamide Substances 0.000 abstract description 4
- 229920002647 polyamide Polymers 0.000 abstract description 4
- 229920000742 Cotton Polymers 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract description 3
- 239000002480 mineral oil Substances 0.000 abstract description 2
- 235000010446 mineral oil Nutrition 0.000 abstract description 2
- 229920001083 polybutene Polymers 0.000 abstract description 2
- 230000004931 aggregating effect Effects 0.000 abstract 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000004519 grease Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 229920000535 Tan II Polymers 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は半流動性シール材に関し、例えばシールド掘
進機のテールシール部２８の半流動性シール材１０とし
て好適なものである。このテールシール部２８は、第２
図の如く、外層がシール板層１６であり、その内側層が
金１１２１を備えたワイヤーブラシ層１７である一対の
テールシーリング１９から構成されている１図中の符号
２３はセグメント（シールド掘進機が穿設したトンネル
の周壁を補強する部材）である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a semi-fluid sealing material, and is suitable, for example, as the semi-fluid sealing material 10 of the tail seal portion 28 of a shield tunneling machine. This tail seal portion 28
As shown in the figure, the outer layer is a seal plate layer 16, and the inner layer is a wire brush layer 17 with gold 1121.It is made up of a pair of tail seals 19. The reference numeral 23 in the figure is a segment (shield tunneling machine). This is a member that reinforces the peripheral wall of a tunnel that has been bored.
なお、本明細書において、半流動性シール材（以下、単
にｒシール材」と略す）とは、ちょう度（ＪＩＳ ｘ
ｚｚｚｏ；ｚｓ℃）が１６０〜３００の範囲のものをい
う。In addition, in this specification, the semi-fluid sealing material (hereinafter simply referred to as "r sealing material") refers to the consistency (JIS x
zzo; zs°C) is in the range of 160 to 300.
〈従来の技術〉
従来、この種のシール材１０として、特開昭６２−１９
０２８０号公報に示されたものがある。<Prior art> Conventionally, as this type of sealing material 10, Japanese Patent Application Laid-open No. 62-19
There is one shown in Publication No. 0280.
このシール材１０は、炭化水素油の中へ粘性樹脂、無機
充填剤及び繊維質が配合されてなる。無機充填剤はシー
ル材１０の比重を、水の比重（−１）より大きくするた
めに配合され、コスト低減の見地から炭酸カルシウムを
用いることが多い、！ａ線維質は必須成分として、アス
ベストと、平均繊雑晶が２〜１０■である針状の合成繊
維とが用いられている。This sealing material 10 is made by blending a viscous resin, an inorganic filler, and a fibrous material into hydrocarbon oil. The inorganic filler is blended to make the specific gravity of the sealing material 10 larger than the specific gravity (-1) of water, and calcium carbonate is often used from the viewpoint of cost reduction! The essential components of the a-fiber are asbestos and needle-like synthetic fibers with an average fibrous crystal size of 2 to 10 square centimeters.
具体的には、下記配合からなる。Specifically, it consists of the following formulation.
炭化水素油 ４０重量％
粘粘性Ｍ脂 ２５重量％アスベスト
２８重量％合成繊維 ５
重量％
炭酸カルシウム １０重量％
かかる配合のシール材１０によれば、一般的な条件で使
用されるシールドａ道機のテールシール部１３に充填す
るシール材！Ｏとして充分なシール性が得られていた。Hydrocarbon oil 40% by weight Viscous M fat 25% by weight Asbestos
28% by weight synthetic fiber 5
Weight%: Calcium carbonate: 10% by weight According to the sealing material 10 having such a composition, the sealing material can be filled into the tail seal portion 13 of a shield a-road machine used under general conditions! Sufficient sealing performance was obtained as O.
〈発明が解決しようとする課題〉
しかしながら、上記配合のシール材１０には、下記の解
決すべき課題がある。<Problems to be Solved by the Invention> However, the sealing material 10 having the above formulation has the following problems to be solved.
■昨今における環境保全の見地から、アスベストを配合
することは好ましくない。■From the standpoint of environmental conservation these days, it is not desirable to incorporate asbestos into products.
■長時間圧力がかけられると、シール材１０中の油成分
が分離するおそれがある。このように油成分が分離する
と、シール材１０の体積が低下して、シール材１０とテ
ールシール部１３との間に空陳が形成され、シール材１
０のシール性能が低下するおそれがある。これは反面、
シール材１０の補充作業が絶えず要求されることとなる
。(2) If pressure is applied for a long time, the oil component in the sealing material 10 may separate. When the oil component separates in this way, the volume of the sealing material 10 decreases and a gap is formed between the sealing material 10 and the tail seal portion 13, and the sealing material 1
There is a risk that the sealing performance of 0 may deteriorate. On the other hand, this
Replenishment of the sealing material 10 is constantly required.
■従来例のシール材１０は、シールド掘進機のテールシ
ール部１３へ充填されて、長時間使用すると、その表面
がセメント化するおそれがあった。これは、セグメント
とテールシール部との間隙を塞ぐための裏込め材（発泡
モルタル）がシール材のアスベスト及び炭酸カルシウム
に影響するためだと考えられる。(2) If the conventional sealing material 10 is filled into the tail sealing portion 13 of a shield tunneling machine and used for a long time, there is a risk that the surface thereof will become cement. This is thought to be because the backfilling material (foamed mortar) used to close the gap between the segment and the tail seal affects the asbestos and calcium carbonate of the sealing material.
このようにシール材１０の表面がセメント化すると、そ
のシール性能の低下をまぬがれない。When the surface of the sealing material 10 becomes cemented in this way, the sealing performance inevitably deteriorates.
■テールシール部１３における一対のテールシールリン
グ１９間には、一般的にカップグリース（ＪＩＳ Ｋ
２２２８（一般用グリース１種））２５が充填さね
ている。このカップグリース２５とシール材１０とが混
合すると、シール材１０の物性が変化し、そのシール性
能が低下するおそれがある。■ Cup grease (JIS K
2228 (General Grease Type 1)) 25 has not been filled. When the cup grease 25 and the sealing material 10 are mixed, the physical properties of the sealing material 10 may change and its sealing performance may deteriorate.
〈課題を解決するための手段〉
この発明は上記課題にかんがみてなされたものであり、
繊維質として、綿状に集合する非針状の合成繊維を３〜
１５１量％と、平均繊維長が１．０〜２（１，０ｍｍで
ある針状の合成ｗＡ維１〜５重量％とを半流動性シール
材に配合することにより、シール材中のアスベストの存
在を排除する。<Means for solving the problems> This invention has been made in view of the above problems,
As a fiber, non-needle-like synthetic fibers that aggregate into cotton-like fibers are used.
By blending 151% by weight of acicular synthetic wA fibers with an average fiber length of 1.0 to 2 mm (1.0 mm) into a semi-fluid sealing material, asbestos in the sealing material can be reduced. eliminate existence.
また、繊維質として、綿状に集合する非針状の合成繊維
のみを３〜１５重量％配合しても、シール材は所望の耐
水性能を有する。Moreover, even if only 3 to 15% by weight of non-acicular synthetic fibers that aggregate into flocculent fibers are blended as the fibers, the sealing material still has the desired water resistance.
く手段の詳細な説明〉 以下、上記手段の各成分について詳細に説明をする。Detailed explanation of the method Each component of the above means will be explained in detail below.
（ア）炭化水素油
炭化水素油は鉱物油系中買油（１０マシン油以上）を使
用し、全体の２８〜５０重量％とする。(a) Hydrocarbon oil The hydrocarbon oil used is mineral oil-based medium-purchased oil (10% machine oil or more), and is 28 to 50% by weight of the total.
なお、２８重量％未満であるとシール材のちょう度が高
くなり、一方、５０重量％を越えるとちょう度が低くな
るので好ましくない。Note that if it is less than 28% by weight, the consistency of the sealing material will be high, while if it exceeds 50% by weight, the consistency will be low, which is not preferable.
（イ）粘性樹脂
粘性樹脂はシール材に粘性な付与するために混和され、
全体の３０重量％を越えると、シール材が粘着しすぎて
充填が困難となるので好ましくない。(a) Viscous resin The viscous resin is mixed to give the sealing material viscosity.
If it exceeds 30% by weight of the total, the sealing material becomes too sticky and filling becomes difficult, which is not preferable.
この粘性樹脂を混和しないとシール材に所望の耐水圧性
が得られないので好ましくない。Unless this viscous resin is mixed, the desired water pressure resistance cannot be obtained in the sealing material, which is not preferable.
なお、粘性樹脂には常温で液体状の樹脂と、常温で固体
状の樹［１（分子量８００以上）であって、炭化水素油
に溶解されて粘性を示すものを用いることができる。前
者の例としてポリブデンを、後者の例としてアイソタク
チックポリプロピレン（分子量；３万）を挙げることが
できる。Note that the viscous resin can be a resin that is liquid at room temperature, or a resin that is solid at room temperature (molecular weight 800 or more) and exhibits viscosity when dissolved in hydrocarbon oil. An example of the former is polybutene, and an example of the latter is isotactic polypropylene (molecular weight: 30,000).
（つ）ｉ＠維買
繊維質は、綿状に集合する非針状の合成繊維と、平均繊
維長が１．０〜２８．ｈｍである針状の合成繊維とから
なる。(i) i@textile fibers consist of non-needle-like synthetic fibers that aggregate into cotton-like fibers and have an average fiber length of 1.0 to 28. It consists of acicular synthetic fibers.
綿状に集合する非針状の合成繊維とは、単繊維がちぢれ
ていて、これらが相互に絡まると綿状になるものをいう
、この繊維の形成材料には、ポリエチレン、ポリエステ
ル、ポリアミド等を挙げることができる、そして、その
うちの一種又は２二種以上の材質の繊維を炭化水素油へ
配合することとなる。配合量は３〜１５！！量％が好ま
しい。更に好ましくは、５〜１０１ｉ量％である。３未
満の配合量であると、シール材に所望（−８ｋｇ１０ｆ
）の水圧に対するシール性が確保できないおそれがある
ので好ましくない、一方、１５重量％を越えて配合する
と、シール材がレンガ状となるので好ましくない。Non-needle-like synthetic fibers that aggregate into cotton-like fibers are fibers that are curled and become cotton-like when they are entangled with each other.The materials used to form these fibers include polyethylene, polyester, polyamide, etc. Fibers made of one or more of these materials are blended into the hydrocarbon oil. The blending amount is 3 to 15! ! Amount % is preferred. More preferably, it is 5 to 101i% by weight. If the blending amount is less than 3, the desired sealing material (-8 kg 10 f
) is not preferable because it may not be possible to ensure sealing performance against water pressure.On the other hand, if it is blended in an amount exceeding 15% by weight, the sealing material becomes brick-like, which is not preferable.
なお、非針状合成繊維を配合すれば、後述する針状合成
繊維を配合しなくても、シール材に上記所望のシール性
が得られる（実施例１，２．３参照）、非針状合成繊維
の平均繊維長は、０．１〜５゜０Ｉ１１とすることが好
ましい、更に好ましくは０．５〜２．５ ｍｍである。In addition, if non-acicular synthetic fibers are blended, the above-described desired sealing properties can be obtained in the sealing material without blending the acicular synthetic fibers described below (see Examples 1 and 2.3). The average fiber length of the synthetic fibers is preferably 0.1 to 5°0I11, more preferably 0.5 to 2.5 mm.
針状の合成繊維は、シール材のシール性を向上するため
に配合される。この針状合成繊維には、従来より配合さ
れてきたポリエステル、ポリアミド、ポリエチレン等の
強靭な耐水性繊維の一種又は二種以上を使用できる。こ
の針状合成繊維は、このシール材において、非針状合成
繊維とからみあって該非針状合成繊維の骨になり、もっ
てシール材のシール性を向上させると考えられる。従っ
て、かかる針状合成繊維にはある程度の長さ（１〜２８
ｍ■）とある程度の剛性（太さ：０．５〜１０デニール
）が必要となる。また、配合量は、シール材に対して１
〜５重量％とすることが好ましいが、骨としての機能を
確実に奏させるためには、２．０〜２．５重量％とする
ことが更に好ましい、なお、針状合成繊維の配合量が１
重量％未溝では、非針状合成繊維の骨となり得す、一方
、５重量％を越えると、シール材の原材料コストが上昇
するとともに、充填が困難になるので、それぞれ好まし
くない。The acicular synthetic fiber is blended to improve the sealing properties of the sealant. For this acicular synthetic fiber, one or more types of tough water-resistant fibers such as polyester, polyamide, and polyethylene, which have been conventionally blended, can be used. It is thought that the acicular synthetic fibers become entangled with the non-acicular synthetic fibers in this sealing material to form bones of the non-acicular synthetic fibers, thereby improving the sealing properties of the sealing material. Therefore, such needle-like synthetic fibers have a certain length (1 to 28
m) and a certain degree of rigidity (thickness: 0.5 to 10 denier). In addition, the blending amount is 1 for the sealing material.
It is preferable to set the amount to ~5% by weight, but in order to ensure the function as bones, it is more preferable to set it to 2.0 to 2.5% by weight. 1
If the percentage by weight is ungrooved, it may become bones of the non-acicular synthetic fibers, while if it exceeds 5% by weight, the raw material cost of the sealing material increases and filling becomes difficult, which is not preferable.
（１）無機充填剤
無機充填剤は、シール材の比重を１以上にする量が充填
される。シール材の比重が１未濡となると、シールド掘
進機のテールシール部へ地下水が侵入してきたときに、
シール材が浮いてしまい、シール作用が奏されなくなる
虞れがあるので好ましくない。(1) Inorganic filler The inorganic filler is filled in an amount that makes the specific gravity of the sealing material 1 or more. When the specific gravity of the sealing material becomes 1, when groundwater enters the tail seal of the shield excavator,
This is not preferable because there is a risk that the sealing material will float and the sealing effect will no longer be achieved.
無機充填剤は、アスベスト等環境公害性のあるものの他
は、特に限定されないが、コスト等の見地から炭酸カル
シウムを用いるのが一般的である（才）他の充填剤
各種着色剤、酸化防止剤等を配合できることはいうまで
もない。Inorganic fillers are not particularly limited, except for those that cause environmental pollution such as asbestos, but calcium carbonate is generally used from the viewpoint of cost, etc.Other fillersVarious coloring agents, antioxidants Needless to say, it is possible to combine the following.
金属石鹸（カルシウム石鹸等）を配合する（即ち炭化水
素油をグリース化する）こともできる。Metallic soaps (such as calcium soaps) may also be incorporated (ie, hydrocarbon oils may be greased).
上記各成分を通常の混和機により混和して、シール材を
調製する。シール材のちょう度は１６０〜３００とする
ことが好ましい。A sealing material is prepared by mixing the above components using a common mixer. The penetration of the sealing material is preferably 160 to 300.
〈発明の効果〉
繊維質として、綿状に集合する非針状の合成繊維のみを
３〜１５重量％配合してなるこの発明のシール材は、金
網と組合せることにより、第１表の如く、２８１の厚さ
で８ｋｇｆ／ａ１以上の耐水圧性能を有する。この数値
は地下鉄工事現場等において要求される値（実験地で８
ｋｇｆ／ｃｌ）を潰延する。<Effects of the Invention> The sealing material of the present invention, which is composed of 3 to 15% by weight of non-needle-like synthetic fibers that aggregate into cotton-like fibers, can be used in combination with a wire mesh as shown in Table 1. , 281 thick and has a water pressure resistance of 8 kgf/a1 or more. This value is the value required at subway construction sites, etc. (8 at the test site).
kgf/cl).
更には、繊維質として、綿状に集合する非針状の合成繊
維を３〜１５重量％に加えて、平均繊維長が１．０〜２
８．０ｍｍである針状の合成繊維を１〜５重量％配合す
ると、非針状合成繊維のみを配合したものに比べて、シ
ール材の耐水圧性能が１．５倍以上となる。Furthermore, 3 to 15% by weight of non-acicular synthetic fibers that aggregate into flocculent fibers are added as fibers, and the average fiber length is 1.0 to 2.
When 1 to 5% by weight of acicular synthetic fibers having a diameter of 8.0 mm are blended, the water pressure resistance performance of the sealing material becomes 1.5 times or more as compared to one containing only non-acicular synthetic fibers.
以上説明したように、この発明のシール材によれば、ア
スベストを配合しなくても、所望の耐水圧性能を有する
こととなる。As explained above, the sealing material of the present invention has desired water pressure resistance even without asbestos being blended.
更には、長時間圧力がかけられても、シール材中の油成
分が分離し難くなる。これにより、シール材のシール性
能が長時間維持されて、シール材の補充作業が不要にな
る。。Furthermore, even if pressure is applied for a long time, the oil component in the sealing material becomes difficult to separate. As a result, the sealing performance of the sealing material is maintained for a long time, and there is no need to replenish the sealing material. .
また、無機充填剤として炭酸カルシウムが配合されてい
ても、モルタル等のコンクリート成分の影響を受けてセ
メント化しなくなる。Furthermore, even if calcium carbonate is blended as an inorganic filler, it will not become cement due to the influence of concrete components such as mortar.
そして更に、この発明のシール材は、いわゆるカップグ
リースと混合されても、その物性が変化しない。Furthermore, even when the sealing material of the present invention is mixed with so-called cup grease, its physical properties do not change.
つまりこの発明のシール材によれば、アスベストを排除
して環境保全が確保できることに加えて、シール材とし
ての性能が向上し、特に、シールド掘進機のテールシー
ル部へ充填するものとして好適となる。In other words, the sealing material of the present invention not only eliminates asbestos and ensures environmental protection, but also improves its performance as a sealing material, making it particularly suitable for filling the tail seal portion of a shield tunneling machine. .
〈実施例〉
以下、上記効果を確認するための実施例について説明す
る。<Example> Hereinafter, an example for confirming the above effects will be described.
炭化水素油として４６マシン油（日本石油（株）製：商
品名「４６マシン油」）、及び５００マシン油（日本石
油（株）製；商品名「スーパーＣ」）の混合油に対し、
粘性樹脂としてボリブデン（日本石油（株）製：商品名
ｒ２ＱＯＮＪ ）、針状合成繊維と１ノで、長さ５■と
３Ｈのテトロン繊維（音大（株）ｙＩに太さ２デニール
）、非針状合成繊維として、ポリエチレン繊Ｍ（三井石
油化学工業（株）製；商品名「ケミベスト」）及び炭酸
カルシウム（日東粉化（株）製：商品名「超微粒子Ｎ５
１００Ｊ）を室温条件で通常の混和機により混和して、
第１表に配合を示した実施例のシール材を調製した。For a mixed oil of 46 machine oil (manufactured by Nippon Oil Co., Ltd.: trade name "46 machine oil") and 500 machine oil (manufactured by Nippon Oil Co., Ltd.; trade name "Super C") as hydrocarbon oil,
As a viscous resin, bolibdenum (manufactured by Nippon Oil Co., Ltd.: trade name r2QONJ), acicular synthetic fiber and Tetron fiber (2 denier in thickness, 5 mm and 3 H in length, manufactured by Ondai Co., Ltd.), and As needle-like synthetic fibers, polyethylene fiber M (manufactured by Mitsui Petrochemical Industries, Ltd.; trade name "Chemivest") and calcium carbonate (manufactured by Nitto Funka Co., Ltd.; trade name "Ultrafine Particles N5") are used.
100J) at room temperature using a regular mixer,
Sealing materials of Examples whose formulations are shown in Table 1 were prepared.
そして、４８時間放置後、実施例のシール材を第１図に
示した耐水圧試験装置１へ充填した。After leaving it for 48 hours, the sealing material of the example was filled into the water pressure test apparatus 1 shown in FIG.
この耐水圧試験装置１の構成について説明する、図中の
符号５は基板であり、貫通孔３（直径Ｌ１：１５ｍｍ）
が１つあけられている。基板５の上面には貫通孔３と軸
を同じく１ノて内側シリンダ７（内径Ｌ２；２７ｍｍ、
高さＬ３Ｈ５５ｍ■）が配設されている。この内側シリ
ンダ７は、更に、油圧シリンダ１５内へ装着されている
。Describing the configuration of this water pressure test device 1, reference numeral 5 in the figure is a substrate, and the through hole 3 (diameter L1: 15 mm)
One is open. On the upper surface of the substrate 5, an inner cylinder 7 (inner diameter L2; 27 mm,
The height is L3H55m. This inner cylinder 7 is further mounted within a hydraulic cylinder 15.
かかる構成の耐水圧試験装置１に対し、内側シリンダ７
内へステンレス製の金網９（２８メツシエ、直径２７１
の円板形状）を敷いて、その上へ各実施例のシール材１
０（圧さＬ４；２８ｍｍ）を充填し、更に水１１を内側
シリンダ７が一杯になるまで充填する。符号１３は油で
あり、図示しない油圧系により任意に圧力がかけられる
。なお、金ｌＩ４９を敷いたのは、シールド掘進機のテ
ールシール部を想定したものである。In contrast to the water pressure test device 1 having such a configuration, the inner cylinder 7
Inward stainless steel wire mesh 9 (28 pieces, diameter 271
(disk shape), and sealant 1 of each example is placed on top of it.
0 (pressure L4; 28 mm) and further fill with water 11 until the inner cylinder 7 is full. Reference numeral 13 is oil, and pressure is applied arbitrarily by a hydraulic system (not shown). The layer of gold lI49 was intended for the tail seal part of a shield tunneling machine.
そして、油圧を徐々に挙げて水１１が貫通孔３から噴出
時の圧力を測定した。勿論、金網９の破損やシール材の
流出は発生しなかった。Then, the oil pressure was gradually increased to measure the pressure when the water 11 was ejected from the through hole 3. Of course, no breakage of the wire mesh 9 or leakage of the sealant occurred.
ちょう度はＪＸＳ Ｋ２２２８ （２５℃）による。Consistency is based on JXS K2228 (25°C).
結果を第１表に示した。The results are shown in Table 1.
第１表の結果より、実施例のシール材は、アスベストが
配合されていなくても、８ｋｇｆ１０１Ｉを越える耐水
圧性能を有することがわかる。From the results in Table 1, it can be seen that the sealing materials of the examples have water pressure resistance exceeding 8 kgf101I even if asbestos is not blended.
また、油成分の分離を調べるために、第１図の耐水圧試
験装置１へ、第４実施例及び比較例のシール材１０をセ
ットした。そして油圧を１０ｋｇｆ／ｃｌ’に固定して
５分間放置した。そして、シール材１０から分離した（
金ｌｌｌ９に付着した分子金網９から滴下した分）油成
分の重量を測定した。Further, in order to examine the separation of oil components, the sealing materials 10 of the fourth example and the comparative example were set in the water pressure test apparatus 1 shown in FIG. Then, the oil pressure was fixed at 10 kgf/cl' and left for 5 minutes. Then, it was separated from the sealing material 10 (
The weight of the oil component dropped from the molecular wire mesh 9 attached to the gold layer 9 was measured.
結果を第２表に示した。The results are shown in Table 2.
第２表の結果から、実施例のシール材は、比較例のそれ
に比して油成分が分離し難いことがわかった。From the results in Table 2, it was found that the oil component of the sealing materials of the Examples was more difficult to separate than that of the Comparative Examples.
また、シール材のセメント化を調べるために、第４実施
例と第２表における比較例１のシール材ヘモルタル成分
（ケイ酸ソーダ（ＪＩＳ ３号）とベントナイト）を
混合した。混合条件を下記に示す。In addition, in order to investigate the cementation of the sealing material, the hemortar components (sodium silicate (JIS No. 3) and bentonite) of the sealing material of Example 4 and Comparative Example 1 in Table 2 were mixed. The mixing conditions are shown below.
混合条件
混合比；
シール材；ケイ酸ソーダ：ベントナイト譚２重量部：１
重量部＝ｉｌｌ量部
攪拌時間：３０分
攪拌温度：室温
攪拌後の放置時間；開放された室内へ
２４時間。Mixing conditions Mixing ratio: Sealing material: Sodium silicate: Bentonite Tan 2 parts by weight: 1
Parts by weight = parts by weight Stirring time: 30 minutes Stirring temperature: Room temperature Standing time after stirring: 24 hours in an open room.
そして、混合前後における各シール材のちょう度を調べ
た。実施例４のシール材におけるちょう度の変化は１９
２（混合前）→１８９（混合後）であり、比較例１のシ
ール材におけるちょう度の変化は２８０（混合前）→５
０（混合後）である、ちょう度が１００以下になると、
セメント化状態となり、シー ル材のシール性能は維持
できなくなる。Then, the consistency of each sealing material before and after mixing was examined. The change in consistency in the sealing material of Example 4 was 19
2 (before mixing) → 189 (after mixing), and the change in consistency in the sealing material of Comparative Example 1 is 280 (before mixing) → 5
When the consistency becomes 100 or less, which is 0 (after mixing),
It becomes cemented and the sealing performance of the sealant cannot be maintained.
更にまた、シール材とカップグリースとの混合状態を調
べるために、実施例４と比較例１のシール材へそれぞれ
カップグリース（ＪＩＳ Ｋ ２２２８ −膜用グ
リース１種）を混合させた。混合条件を下記に示す。Furthermore, in order to investigate the mixing state of the sealing material and cup grease, cup grease (JIS K 2228 - Membrane Grease Type 1) was mixed with the sealing materials of Example 4 and Comparative Example 1, respectively. The mixing conditions are shown below.
混合条件 混合比：シール材二カップグリース 謬１０１！量部＝１重量部 攪拌時間：３０分 攪拌温度；室温 攪拌後の放置時間；開放された室内へ ２４時間。Mixing conditions Mixing ratio: sealing material two cups grease Error 101! Amount part = 1 part by weight Stirring time: 30 minutes Stirring temperature; room temperature Leaving time after stirring: Into an open room 24 hours.
そして、各混合物の状態を調べた。実施例４のシール材
とカップグリースとの混合物は、実施例４のシール材と
比べて何ら変化がなかった。一方、比較例１とカップグ
リースとの混合物は、全体力コム状態となった。このよ
うにシール材がゴム状態になると、そのシール性能が低
下するので好ましくない。Then, the state of each mixture was examined. The mixture of the seal material and cup grease of Example 4 did not show any change compared to the seal material of Example 4. On the other hand, the mixture of Comparative Example 1 and the cup grease had a total force comb state. When the sealing material becomes rubbery in this way, its sealing performance deteriorates, which is undesirable.
第１表 １）各成分の数値は重量％を示す。Table 1 1) Values for each component indicate weight %.
２）非針状合成ＩＭｆａ （０，７＋ｕａ） ハ’ｒ
ミヘスｈ （ＦＤ３．８０）３）非針状合成ｔａ維（１
、６１１１） ＆ｔ ’ｒ ミヘス） （ＦＤ７８０）
４）非針状合成繊維（２，２ｍｍ）はケミベスト（ＦＤ
９！ｔｏ）第 ２ 表
１）各成分の数値は重量％を示す。2) Non-acicular synthetic IMfa (0,7+ua) ha'r
Mihes h (FD3.80) 3) Non-acicular synthetic TA fiber (1
, 6111) &t'r Mijes) (FD780)
4) Non-acicular synthetic fiber (2.2mm) is Chemivest (FD)
9! to) Table 2 1) Values for each component indicate weight %.
第１図は耐水圧試験装置１の構成を説明する断面図、
第２図はシールド掘進機のテールシール部１３の断面図
。
１・・・耐水圧試験装置、
１０・・・シール材。
特 許 出 願 人
中京化成工業株式会社
第１図
１５２Ｍ
自 発 補 正
手続補正書
６３．７．１２
昭和 年 月 日
１、事件の表示
昭和６３年 特 許 願 第１０３１６３号２、発明の
名称
半流動性シール材
３、補正をする者
事件との関係 特 許 出 願 人
住所
名称 中京化成工業株式会社
４、代理人
６、補正の内容
（１）明細書第１７頁の第２表を別紙の通り補正する。
（木綿の欄を削除した。）
第 ２ 表
１）各成分の数値は重量％を示す。FIG. 1 is a sectional view illustrating the configuration of a water pressure test device 1, and FIG. 2 is a sectional view of a tail seal portion 13 of a shield tunneling machine. 1... Water pressure test device, 10... Sealing material. Patent application Ninchukyo Kasei Kogyo Co., Ltd. Figure 1 152M Voluntary amendment procedure amendment 63.7.12 Showa year, month, day 1, case description 1988 Patent application No. 103163 2, title and half of the invention Flowable sealing material 3, relationship with the case of the person making the amendment Patent application Person address and name Chukyo Kasei Kogyo Co., Ltd. 4, Agent 6, Contents of the amendment (1) Table 2 on page 17 of the specification is attached as an attached document. Correct as expected. (The column for cotton was deleted.) Table 2 1) Values for each component indicate weight %.
Claims (2)
配合してなる半流動性シール材であつて、前記繊維質と
して、綿状に集合する非針状の合成繊維を３〜１５重量
％配合した ことを特徴とする半流動性シール材。(1) A semi-fluid sealing material made by blending a hydrocarbon oil, a viscous resin, an inorganic filler, and a fibrous material, wherein the fibrous material includes 3 to 15 non-acicular synthetic fibers that aggregate into a flocculent shape. A semi-fluid sealant characterized by containing % by weight.
配合してなる半流動性シール材であつて、前記繊維質と
して、綿状に集合する非針状の合成繊維を３〜１５重量
％と、平均繊維長が１．０〜２８．０ｍｍである針状の
合成繊維を１〜５重量％配合した ことを特徴とする半流動性シール材。(2) A semi-fluid sealing material comprising a hydrocarbon oil, a liquid resin, an inorganic filler, and a fibrous material, wherein the fibrous material includes 3 to 15 non-acicular synthetic fibers that aggregate in a flocculent shape. % by weight and 1 to 5% by weight of acicular synthetic fibers having an average fiber length of 1.0 to 28.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316388A JPH01272687A (en) | 1988-04-26 | 1988-04-26 | Semifluid sealing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316388A JPH01272687A (en) | 1988-04-26 | 1988-04-26 | Semifluid sealing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01272687A true JPH01272687A (en) | 1989-10-31 |
Family
ID=14346839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10316388A Pending JPH01272687A (en) | 1988-04-26 | 1988-04-26 | Semifluid sealing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01272687A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867495A2 (en) * | 1997-03-17 | 1998-09-30 | Forta Corporation | Method for removing debris from a well-bore |
| WO2016021690A1 (en) * | 2014-08-07 | 2016-02-11 | Ｊｘ日鉱日石エネルギー株式会社 | Tail seal composition for use in shield machine |
| WO2016063899A1 (en) * | 2014-10-24 | 2016-04-28 | Ｊｘ日鉱日石エネルギー株式会社 | Setting retarder for tail seal for shield tunneling machine |
| WO2016063900A1 (en) * | 2014-10-24 | 2016-04-28 | Ｊｘ日鉱日石エネルギー株式会社 | Softener for tail seal for shield tunneling machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235244A (en) * | 1975-09-13 | 1977-03-17 | Minoru Imanishi | Calking composition |
| JPS5269465A (en) * | 1975-12-05 | 1977-06-09 | Coal Industry Patents Ltd | Moistureproof compound |
| JPS62190280A (en) * | 1986-02-14 | 1987-08-20 | Chukyo Kasei Kogyo Kk | Semiliquid sealing material and method for water stopping at tail sealing part of shielded digging machine using said material |
-
1988
- 1988-04-26 JP JP10316388A patent/JPH01272687A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235244A (en) * | 1975-09-13 | 1977-03-17 | Minoru Imanishi | Calking composition |
| JPS5269465A (en) * | 1975-12-05 | 1977-06-09 | Coal Industry Patents Ltd | Moistureproof compound |
| JPS62190280A (en) * | 1986-02-14 | 1987-08-20 | Chukyo Kasei Kogyo Kk | Semiliquid sealing material and method for water stopping at tail sealing part of shielded digging machine using said material |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867495A2 (en) * | 1997-03-17 | 1998-09-30 | Forta Corporation | Method for removing debris from a well-bore |
| EP0867495A3 (en) * | 1997-03-17 | 1999-02-03 | Forta Corporation | Method for removing debris from a well-bore |
| US6164380A (en) * | 1997-03-17 | 2000-12-26 | Forta Corporation | Method for clearing debris in a bore |
| WO2016021690A1 (en) * | 2014-08-07 | 2016-02-11 | Ｊｘ日鉱日石エネルギー株式会社 | Tail seal composition for use in shield machine |
| JPWO2016021690A1 (en) * | 2014-08-07 | 2017-07-13 | Ｊｘｔｇエネルギー株式会社 | Tail seal composition for shield machine |
| WO2016063899A1 (en) * | 2014-10-24 | 2016-04-28 | Ｊｘ日鉱日石エネルギー株式会社 | Setting retarder for tail seal for shield tunneling machine |
| WO2016063900A1 (en) * | 2014-10-24 | 2016-04-28 | Ｊｘ日鉱日石エネルギー株式会社 | Softener for tail seal for shield tunneling machine |
| JPWO2016063899A1 (en) * | 2014-10-24 | 2017-08-03 | Ｊｘｔｇエネルギー株式会社 | Setting retarder for tail seal of shield machine |
| JPWO2016063900A1 (en) * | 2014-10-24 | 2017-08-03 | Ｊｘｔｇエネルギー株式会社 | Softener for tail seal of shield machine |
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