CN101696551B - Method for making high-intensity thread seal thread - Google Patents
Method for making high-intensity thread seal thread Download PDFInfo
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- CN101696551B CN101696551B CN2009101934436A CN200910193443A CN101696551B CN 101696551 B CN101696551 B CN 101696551B CN 2009101934436 A CN2009101934436 A CN 2009101934436A CN 200910193443 A CN200910193443 A CN 200910193443A CN 101696551 B CN101696551 B CN 101696551B
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Abstract
The invention discloses a method for making high-intensity thread seal thread, which is made by impregnating threads twisted from polyamide fibers with viscose. The method for making the viscose comprises the following steps of: heating 90 to 96 weight parts of dimethyl siloxane resin to 60 to 75 DEG C for 7 to 9 hours, introducing vapor into a charging jacket pipe of a reaction kettle to preheat the kettle, pumping the dimethyl siloxane resin into the reaction kettle by a pump, keeping the temperature in the vapor-heated jacket pipe of the reaction kettle below 95 DEG C, adding 1 to 10 weight parts of hydrated magnesium silicate and 0.05 to 0.5 weight part of calcium carbonate into the reaction kettle, fully stirring the mixture to make it homogeneous. The thread is characteristic of great wear resistance, high elasticity, high-temperature resistance, low-temperature resistance, ageing resistance and corruption resistance. The thread can be used for a long time within the temperature range between the highest temperature of 200 DEG C and the lowest temperature of 90 DEG C below zero; within the temperature range, the viscose does not get solidified and maintain the original viscosity and moisture; the joint surface can still show a perfect sealing performance at a high temperature or a low temperature or under other special conditions.
Description
Technical field
The present invention relates to thread seal material fields such as pipeline, be specially a kind of preparation method of high-intensity thread seal thread.
Background technology
At present, using more widely in the pipeline thread sealing, encapsulant is the raw material band that polytetrafluoroethylene (PTFE) is made.But raw material band has the following disadvantages in actual use: 1, the screw thread of stainless steel tube is sharply sharp, and meeting be cut raw material band, cut off or cut mashed, influences sealing effectiveness; 2, raw material band itself has static, and when low-temperature construction, raw material band wafts from, adhesion and in disorder situation aggravation, brings extremely inconvenience to construction; 3, the screw thread break joint of large-diameter pipe is big, uses the sealing effectiveness of raw material band undesirable.In addition, also the someone uses flax silk to add the encapsulating method of paint, but flax silk is easily aging and not corrosion-resistant, behind the paint curing, can be aging and produce be full of cracks, causes losing sealing property; Make simultaneously and construct all inconvenient.In order to solve existing sealing problem, the someone adopts anaerobic adhesive to seal in recent years, needed 24 hours but the method will reach the time of real curing sealing effectiveness, and only limitation is used for the metal pipe material thread seal, and construction lacks convenient and swift property.
Summary of the invention
The objective of the invention is the deficiency that exists at the above pipeline thread encapsulant, the preparation method of moisture resistance, waterproof, antirust, cold-resistant, heat-resisting, anti-ozone, ageing-resistant, the corrosion-resistant and simple a kind of high-intensity thread seal thread of manufacture craft is provided.
The present invention is achieved in that a kind of preparation method of high-intensity thread seal thread, the line of being twisted with the fingers by polyamide fiber forms through the viscose glue dipping, described viscose glue is made up of following component: polydimethylsiloxaneresins resins 90-96 weight portion, hydrated magnesium silicate 1-10 weight portion, calcium carbonate 0.05-0.5 weight portion.
The preparation method of described viscose glue is as follows: with the heating of 90-96 weight portion polydimethylsiloxaneresins resins, temperature is 65-75 ℃, and the time is 7-9 hour; Make the logical steam preheating of charging jacket pipe of reactor, with pump polydimethylsiloxaneresins resins is squeezed in the reactor then, the logical steam-heated temperature of chuck is controlled at below 95 ℃ in the reactor; Then in reactor, add the hydrated magnesium silicate of 1-10 weight portion and the calcium carbonate of 0.05-0.5 weight portion, fully stir and promptly got product after evenly in 1-1.5 hour.
The line that described line is twisted with the fingers for the polyamide 1010 fiber.
The line that described polyamide fiber is twisted with the fingers through the method for dipping viscose glue is: the line that polyamide fiber is twisted with the fingers is placed on the payingoff mechanism, line enters the adhesive groove through going into the groove deflector roll, under the guiding of viscose glue deflector roll, flood viscose glue, enter the glue amount control device then and control the glue amount, after the deflector roll take-up in rolling-up mechanism.
A kind of dipping viscose glue device of producing high-intensity thread seal thread, comprise payingoff mechanism, deflector roll, adhesive groove, glue amount controlling organization and rolling-up mechanism, payingoff mechanism is at an end of adhesive groove, be provided with into the groove deflector roll between payingoff mechanism and the adhesive groove, be provided with the viscose glue deflector roll in the adhesive groove, be provided with glue amount controlling organization at the other end of adhesive groove, the rear end of glue amount controlling organization is a rolling-up mechanism, is provided with deflector roll between glue amount controlling organization and rolling-up mechanism.
Described glue amount controlling organization is matched by limit offset plate and lower guide roll and forms, and the line behind the viscose glue dipping passes the viscose glue amount of carrying out control line between limit offset plate and the lower guide roll.
The present invention cooperates the superior thread seal material of making of high strength, sealing property by polyamide fiber line and corresponding viscose glue.It has the characteristics of wear-resisting, good springiness, high-low temperature resistant, ageing-resistant and corrosion resistance, can use for a long time in the scope of 200 ℃ of high temperature, low temperature-90 ℃, and adhesive can not solidify under this temperature range, keeps original viscosity and moistening; Faying face also can be brought into play its perfect sealing function effectively under the high low temperature specific condition; Strong adhesion, permeability height, TENSILE STRENGTH are good, can thoroughly prevent to reveal, and its resistance to oxidation molecule are in the process that oxidation takes place, and also can dissociate to decompose part and more effectively solve leakage problems due to the oxidation; Have advantages such as the raw material of industry of minimizing, low cost, high energy efficiency, health, safety and environmental protection simultaneously.
Description of drawings
Fig. 1 produces the structural representation of the dipping viscose glue device of high-intensity thread seal thread for the present invention.
The specific embodiment mode
The present invention will be described in detail below in conjunction with the drawings and specific embodiments.
A kind of preparation method of high-intensity thread seal thread, the line of being twisted with the fingers by polyamide fiber forms through the viscose glue dipping, described viscose glue is made up of following component: polydimethylsiloxaneresins resins 90-96 weight portion, hydrated magnesium silicate 1-10 weight portion, calcium carbonate 0.05-0.5 weight portion.Wherein, preferred hydrated magnesium silicate consists of: SiO
2(58-61%), Mgo (29-32%), Cao (＜0.7%), Al
2O
3(＜1.8%), Fe
2O (＜1%), physical property: calcination loss (5-6.5%), proportion (2.5-2.8%), granularity (325 mesh sieve all-pass are crossed), whiteness (＞88), pH value (8-10).The average grain diameter of preferred calcium carbonate be 0.1～0.02 micron or≤0.02 micron.
Preferably, viscose glue is composed as follows: polydimethylsiloxaneresins resins 92-94 weight portion, hydrated magnesium silicate 3-7 weight portion, calcium carbonate 0.08-0.4 weight portion.
Preferably, viscose glue is composed as follows: polydimethylsiloxaneresins resins 92-93 weight portion, hydrated magnesium silicate 4-5 weight portion, calcium carbonate 0.1-0.3 weight portion.
The preparation method of described viscose glue is as follows: 90-96 weight portion polydimethylsiloxaneresins resins is heated, temperature is 65-75 ℃, time is 7-9 hour, make the logical steam preheating of charging jacket pipe of reactor, with pump polydimethylsiloxaneresins resins is squeezed in the reactor then, the logical steam-heated temperature of chuck is controlled at below 95 ℃ in the reactor, then in reactor, add the hydrated magnesium silicate of 1-10 weight portion and the calcium carbonate of 0.05-0.5 weight portion, fully stir and promptly got product after evenly in 1-1.5 hour.The adhesive avirulence that the present invention makes, have remarkable moisture resistance, waterproof, antirust, cold-resistant, heat-resisting, anti-ozone, ageing-resistant and corrosion resistance, and manufacture craft is simple, the generation of the no three wastes can not have any impact to environment.
The line that line is twisted with the fingers for the polyamide 1010 fiber.Preferably, dimension is the line that the polyamide 1010 fiber of 2200dtex is twisted with the fingers, tensile strength 〉=32Mpa, and the intensity coefficient of variation 0.53%, elongation at break 14.7% for promoting the thread seal performance, needs to use viscose glue that it is flooded relatively.The line that described polyamide fiber is twisted with the fingers through the method for dipping viscose glue is: the line that polyamide fiber is twisted with the fingers is placed on the payingoff mechanism, line enters the adhesive groove through going into the groove deflector roll, under the guiding of viscose glue deflector roll, flood viscose glue, enter the glue amount control device then and control the glue amount, after the deflector roll take-up in rolling-up mechanism.
A kind of dipping viscose glue device of producing high-intensity thread seal thread, as shown in Figure 1, comprise payingoff mechanism 1, deflector roll, adhesive groove 10, glue amount controlling organization and rolling-up mechanism 9, payingoff mechanism 1 is at an end of adhesive groove 10, be provided with into groove deflector roll 2 between payingoff mechanism 1 and the adhesive groove 10, be provided with viscose glue deflector roll (3 in the adhesive groove 10,4), the other end at adhesive groove 10 is provided with glue amount controlling organization, the rear end of glue amount controlling organization is a rolling-up mechanism 9, is provided with deflector roll (7,8) between glue amount controlling organization and rolling-up mechanism.Glue amount controlling organization is matched by limit offset plate 5 and lower guide roll 6 and forms, and the line behind the viscose glue dipping passes the viscose glue amount of carrying out control line between limit offset plate 5 and the lower guide roll 6.
The present invention cooperates the superior thread seal material of making of high strength, sealing property by polyamide fiber line and corresponding viscose glue.It has the characteristics of wear-resisting, good springiness, high-low temperature resistant, ageing-resistant and corrosion resistance, can use for a long time in the scope of 200 ℃ of high temperature, low temperature-90 ℃, and adhesive can not solidify under this temperature range, keeps original viscosity and moistening; Faying face also can be brought into play its perfect sealing function effectively under the high low temperature specific condition; Strong adhesion, permeability height, TENSILE STRENGTH are good, can thoroughly prevent to reveal, and its resistance to oxidation molecule are in the process that oxidation takes place, and also can dissociate to decompose part and more effectively solve leakage problems due to the oxidation; Have advantages such as the raw material of industry of minimizing, low cost, high energy efficiency, health, safety and environmental protection simultaneously.
Claims (5)
1. the preparation method of a high-intensity thread seal thread, it is characterized in that, the line of being twisted with the fingers by polyamide fiber forms through the viscose glue dipping, described viscose glue is made up of following component: polydimethylsiloxaneresins resins 90-96 weight portion, hydrated magnesium silicate 1-10 weight portion, calcium carbonate 0.05-0.5 weight portion;
The preparation method of described viscose glue is as follows: with the heating of 90-96 weight portion polydimethylsiloxaneresins resins, temperature is 65-75 ℃, and the time is 7-9 hour; Make the logical steam preheating of charging jacket pipe of reactor, with pump polydimethylsiloxaneresins resins is squeezed in the reactor then, the logical steam-heated temperature of chuck is controlled at below 95 ℃ in the reactor; Then in reactor, add the hydrated magnesium silicate of 1-10 weight portion and the calcium carbonate of 0.05-0.5 weight portion, promptly get product after stirring.
2. the preparation method of a kind of high-intensity thread seal thread as claimed in claim 1 is characterized in that, the line that described line is twisted with the fingers for the polyamide 1010 fiber.
3. the preparation method of a kind of high-intensity thread seal thread as claimed in claim 1, it is characterized in that, the line that described polyamide fiber is twisted with the fingers through the method for dipping viscose glue is: the line that polyamide fiber is twisted with the fingers is placed on the payingoff mechanism, line enters the adhesive groove through going into the groove deflector roll, under the guiding of viscose glue deflector roll, flood viscose glue, enter the glue amount control device then and control the glue amount, after the deflector roll take-up in rolling-up mechanism.
4. dipping viscose glue device of producing high-intensity thread seal thread, it is characterized in that, comprise payingoff mechanism, deflector roll, adhesive groove, glue amount controlling organization and rolling-up mechanism, payingoff mechanism are provided with into the groove deflector roll between payingoff mechanism and the adhesive groove at an end of adhesive groove, be provided with the viscose glue deflector roll in the adhesive groove, the other end at the adhesive groove is provided with glue amount controlling organization, and the rear end of glue amount controlling organization is a rolling-up mechanism, is provided with deflector roll between glue amount controlling organization and rolling-up mechanism.
5. a kind of dipping viscose glue device of producing high-intensity thread seal thread as claimed in claim 4, it is characterized in that, described glue amount controlling organization is matched by limit offset plate and lower guide roll and forms, and the line behind the viscose glue dipping passes the viscose glue amount of carrying out control line between limit offset plate and the lower guide roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101934436A CN101696551B (en) | 2009-10-30 | 2009-10-30 | Method for making high-intensity thread seal thread |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101934436A CN101696551B (en) | 2009-10-30 | 2009-10-30 | Method for making high-intensity thread seal thread |
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| CN101696551A CN101696551A (en) | 2010-04-21 |
| CN101696551B true CN101696551B (en) | 2011-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI489023B (en) * | 2012-07-30 | 2015-06-21 | Univ Vanung | Prepreg impregnation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030565A (en) * | 2020-09-16 | 2020-12-04 | 四会市昊天密封材料有限公司 | Deep thread sealing slurry line and manufacturing method and manufacturing device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI489023B (en) * | 2012-07-30 | 2015-06-21 | Univ Vanung | Prepreg impregnation equipment |
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| CN101696551A (en) | 2010-04-21 |
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