CN1846976A - Making process of GRP pipe spigot end and its special mold - Google Patents
Making process of GRP pipe spigot end and its special mold Download PDFInfo
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- CN1846976A CN1846976A CN 200510013267 CN200510013267A CN1846976A CN 1846976 A CN1846976 A CN 1846976A CN 200510013267 CN200510013267 CN 200510013267 CN 200510013267 A CN200510013267 A CN 200510013267A CN 1846976 A CN1846976 A CN 1846976A
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- grp pipe
- spigot end
- particular manufacturing
- pipe spigot
- manufacturing craft
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Abstract
The present invention discloses making process of GRP pipe spigot end and its special mold. The making process includes the following steps: filling the inside surface of annular mold with one layer of paste material; fixing the mold around the spigot end of the wound GRP pipe; curing the GRP pipe and eliminating the mold to form two sealing notches and three ribs in the spigot end; and trimming the sealing notches and ribs simply. The present invention makes the GRP pipe spigot end with special mold, and has simple trimming, saving in material, high production efficiency, less environmental pollution and simple structure and operation of the mold.
Description
Technical field
The present invention relates to a kind of preparation method and particular manufacturing craft thereof of GRP pipe spigot end.
Background technology
GRP pipe is a kind of composite material tube, and it is at industry or architectural transfer oil, coal gas or the water or other fluid of being mainly used to.Fig. 1 is the GRP pipe partial structurtes cutaway view of prior art.As shown in Figure 1, the GRP pipe 1 of this prior art normally is fixed with the GRP pipe mould 3 of back-up ring 2 at two ends surface is twined inner liner successively, is added layer of sand and structure sheaf and superficial layer, then through overcuring and the processing of socket end and make.The simple glass steel conduit 1 general mode of holding, insert that adopts connects, be that its front end is formed with the external diameter birdsmouth bigger than caliber, be formed with the phase offered along its circumferencial direction on the outer circumference surface of terminal socket end 4 across a certain distance and the two seals groove 5 that is parallel to each other and three ribs 6 and be positioned at.When needing tubing in the work progress, in the two seals groove 5 of last pipeline socket end 4, be inserted in earlier O type rubber ring, then with the birdsmouth socket joint of a back pipeline on the socket joint actinal surface of last pipeline socket end 4, rubber ring can produce distortion under the squeezing action between the inner peripheral surface of the outer circumference surface of last pipeline socket end 4 and a back pipeline birdsmouth, thereby the gap sealing between two pipes is lived.At present socket end 4 preparation methods of GRP pipe 1 be finish twining and the pipeline 1 of overcuring be placed on the finishing machine, adopt then by alloy steel material and make and the surperficial surface that is coated with the special-shaped cutter reconditioning socket end 4 of bortz, make it to form shape as shown in Figure 1, promptly form two seals groove 5 and three ribs 6.In this reconditioning process, operating personnel need constantly to measure the girth of sealed groove 5 and the girth of rib 6, with the diameter of determining sealed groove 5 and the diameter of the degree of depth and rib 6, should guarantee has certain compression ratio after rubber ring is installed, so that good seal, guarantee to have certain clearance between the internal diameter of the external diameter of rib 6 and birdsmouth again.Owing to have very strong hardness after GRP pipe 1 solidifies, after using a period of time, therefore special-shaped cutter just must change, and every GRP pipe 1 on average needs mill about 5～10 kilograms powdery waste down, so not only can cause the waste of material, and this operation pollution on the environment is the unsolved crucial difficult problem of the industry always.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide in a kind of process pollution-free, the preparation method of conservation and GRP pipe spigot end simple to operate in a large number.
Another object of the present invention provides a kind of particular manufacturing craft that uses in the above-mentioned GRP pipe spigot end process of making.
In order to achieve the above object, the preparation method of GRP pipe spigot end provided by the invention is to carry out according to the following step order:
(1) at first fills up the paste packing material of one deck being formed with on the inner peripheral surface on the ring-type particular manufacturing craft inner peripheral surface that corresponds to sealed groove and rib shaped boss and groove structure on the GRP pipe spigot end than the high 1～2mm of depth of groove;
(2) the above-mentioned ring-type particular manufacturing craft that fills up packing material is fixed on the outer circumference surface that twines the GRP pipe spigot end that finishes;
(3) said fixing there is the GRP pipe of particular manufacturing craft be cured, throws off particular manufacturing craft then and just can on socket end outer circumference surface, form two seals groove and three ribs;
(4) surface of sealed groove and rib is carried out simple reconditioning and can finish the manufacturing process of GRP pipe spigot end to remove burr.
Described packing material by with socket end used identical resin, talcum powder, silica flour and short fiber with 1: 0.5: 0.5: 0.5 ratio is formed.
A kind of used particular manufacturing craft of above-mentioned GRP pipe spigot end of making, have the circulus of forming by two semi-circular minute moulds, each divide its circumferencial direction of inner peripheral surface upper edge of mould be formed with the socket end on two seals groove and three corresponding two annular boss of rib and three road annular grooves.
The preparation method of GRP pipe spigot end provided by the invention is to utilize particular manufacturing craft to form the outer shape of pipeline socket end, and the reconditioning operation that the pipeline that need not prior art solidifies back socket end, conservation and reduce operation so in large quantities, increase work efficiency, and the powder that produces can be because of reconditioning the time pollutes environment.In addition, particular manufacturing craft of the present invention has simple in structure and advantage such as easy operating.
Description of drawings
Be elaborated below in conjunction with the preparation method and the particular manufacturing craft thereof of the drawings and specific embodiments to GRP pipe spigot end provided by the invention.The parts identical with prior art adopt identical structure, and omit its explanation of carrying out.
Fig. 1 is the GRP pipe partial structurtes cutaway view of prior art.
Fig. 2 is a GRP pipe spigot end particular manufacturing craft forward structure partial sectional view provided by the invention.
Fig. 3 is to cutaway view along A-A among Fig. 2.
Fig. 4 is to cutaway view along B-B among Fig. 3.
The specific embodiment
As Fig. 2～shown in Figure 4, the preparation method of GRP pipe spigot end provided by the invention is to carry out according to the following step order: at first fill up the paste packing material of one deck than the high 2mm of groove 8 degree of depth being formed with on the inner peripheral surface on ring-type particular manufacturing craft 9 inner peripheral surfaces that correspond to sealed groove 5 and rib 6 shaped boss 7 and groove 8 structures on the GRP pipe spigot end 4; The above-mentioned ring-type particular manufacturing craft 9 that fills up packing material is fixed on the outer circumference surface that twines the GRP pipe spigot end 4 that finishes; There is the GRP pipe 1 of particular manufacturing craft 9 to be cured said fixing, throws off particular manufacturing craft 9 then and just can on socket end 4 outer circumference surfaces, form two seals groove 5 and three ribs 6; Simple reconditioning is carried out on the surface of sealed groove 5 and rib 6 can be finished the manufacturing process of GRP pipe spigot end 4 to remove burr.Described packing material by with socket end 4 used identical resin, talcum powder, silica flour and short fibers with 1: 0.5: 0.5: 0.5 ratio is formed.The above-mentioned GRP pipe spigot end 4 used particular manufacturing crafts 9 of making provided by the invention have the circulus of being made up of two semi-circular minute moulds 10, each divide its circumferencial direction of inner peripheral surface upper edge of mould 10 be formed with socket end 4 on two seals groove 5 and three rib 6 corresponding two annular boss 7 and three road annular grooves 8.In particular manufacturing craft 9, put into by guaranteeing the curing uniformity and the cementability of this packing material and pipeline 1 itself with packing material that used identical resin, talcum powder, silica flour and the short fiber of socket end 4 formed.After GRP pipe 1 winding finishes, at first divide the inner peripheral surface of mould 10 evenly to fill up one deck along each the paste packing material, this moment packing material maximum ga(u)ge should be than the degree of depth of groove 8 high 2mm, then the inside circumference face of two semi-circular minute moulds 10 with Fig. 1 guide ring 2 is incorporated on the socket end 4 of GRP pipe 1 for its location, outside benchmark, be about to divide the collar flange 11 of mould 10 inner peripheral surface ends to be stuck on the most inboard periphery 12 of back-up ring 2, and fix with alignment pin and bolt, the sealed groove 5 that so can guarantee extrusion is concentric with the center of GRP pipe 1, thereby can prevent the depth difference of sealed groove 5.On socket end 4 outer circumference surfaces, be fixed with in GRP pipe 1 solidification process of particular manufacturing craft 9, packing material between particular manufacturing craft 9 inner peripheral surfaces and socket end 4 outer circumference surfaces will be cured with socket end 4 main bodys under the pressuring action of particular manufacturing craft 9, thereby be bonded in three ribs 6 on socket end 4 outer peripheral faces the surface and with its formation one, two seals groove 5 then is by the boss on the particular manufacturing craft 97 extruding and form.In addition, use particular manufacturing craft 9 to make socket end 4 and can also utilize squeezing action to prevent that bubble from appearring in the structure that forms after socket end 4 outer surfaces and packing material binding site and packing material solidify, thereby influence the intensity and the service life of GRP pipe 1.
Claims (3)
1, a kind of preparation method of GRP pipe spigot end is characterized in that: the preparation method of described GRP pipe spigot end is to carry out according to the following step order:
1) at first corresponds to GRP pipe spigot end (4) and go up on ring-type particular manufacturing craft (9) inner peripheral surface of sealed groove (5) and rib (6) shaped boss (7) and groove (8) structure and fill up the paste packing material of one deck being formed with on the inner peripheral surface than the high 1～2mm of groove (8) degree of depth;
2) the above-mentioned ring-type particular manufacturing craft (9) that fills up packing material is fixed on the outer circumference surface that twines the GRP pipe spigot end (4) that finishes;
3) said fixing there is the GRP pipe (1) of particular manufacturing craft (9) be cured, throws off particular manufacturing craft (9) then and just can on socket end (4) outer circumference surface, form two seals groove (5) and three ribs (6);
4) simple reconditioning is carried out on the surface of sealed groove (5) and rib (6) and can be finished the manufacturing process of GRP pipe spigot end (4) to remove burr.
2, the preparation method of GRP pipe spigot end according to claim 1 is characterized in that: described packing material by with socket end (4) used identical resin, talcum powder, silica flour and short fiber with 1: 0.5: 0.5: 0.5 ratio is formed.
3, a kind of making used particular manufacturing craft of GRP pipe spigot end according to claim 1, it is characterized in that: described particular manufacturing craft (9) has by two semi-circular minute circuluses of forming of mould (10), and each divides its circumferencial direction of inner peripheral surface upper edge of mould (10) to be formed with and socket end (4) is gone up two seals groove (5) and corresponding two annular boss of three ribs (6) (7) and three road annular grooves (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013267 CN1846976A (en) | 2005-04-04 | 2005-04-04 | Making process of GRP pipe spigot end and its special mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013267 CN1846976A (en) | 2005-04-04 | 2005-04-04 | Making process of GRP pipe spigot end and its special mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1846976A true CN1846976A (en) | 2006-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013267 Pending CN1846976A (en) | 2005-04-04 | 2005-04-04 | Making process of GRP pipe spigot end and its special mold |
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| CN (1) | CN1846976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873503A (en) * | 2020-07-24 | 2020-11-03 | 泸州川西化玻璃钢有限公司 | Production process of socket glass fiber reinforced plastic pipeline |
-
2005
- 2005-04-04 CN CN 200510013267 patent/CN1846976A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873503A (en) * | 2020-07-24 | 2020-11-03 | 泸州川西化玻璃钢有限公司 | Production process of socket glass fiber reinforced plastic pipeline |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |