High-temperature hot air injection starting hose and preparation process thereof

Abstract

The invention discloses a high-temperature hot air injection starting hose and a preparation process thereof. The hose comprises an air injection starting hose body, a hose protecting sleeve and a hose adapter. The air injection starting hose comprises an inner rubber layer, an outer rubber layer and a braided wire framework layer, and the inner rubber layer, the outer rubber layer and the braided wire framework layer are sequentially arranged into a three-layer structure from inside to outside. The hose protection sleeve is arranged on the outer side of the air injection starting hose in a sleeving mode, the hose protection sleeve comprises a woven layer, an inner rubber strip and an outer rubber strip, the inner rubber strip is supported in the woven layer in a spiral mode, and the outer rubber strip is wound on the outer portion of the woven layer in a spiral mode; the hose adapter is installed at the end of the air injection starting hose. The hose can meet the requirement of an aviation hot air source and the requirement of high-frequency use, and the process can effectively improve the product performance stability.

Description

Technical Field

[0001] This invention relates to a high-temperature thermal jet starting hose and its manufacturing process, belonging to the field of rubber material hose technology. Background Technology

[0002] Aircraft and airport air supply equipment vehicles primarily start aircraft engines by outputting low-pressure, high-flow compressed air. They can also provide auxiliary air supply for aircraft inspections or air conditioning. This equipment consists of a vehicle chassis, compressor unit, housing assembly, air supply assembly, and electrical system. The vehicle is equipped with both waste heat supply devices and independent heat source supply devices to generate heat, which is then delivered to the aircraft via jet starter hoses to meet various needs. Jet starter hoses require continuous high-temperature resistance, typically operating at around 200℃, with instantaneous operating temperatures reaching around 250℃. The hose diameter and length, free bending frequency, and frequent use of adapters necessitate additional wear-resistant protective measures, and the high-temperature resistance of the skeleton material are all critical manufacturing requirements. Currently, due to limitations in manufacturing technology and related supporting technologies, jet starter hoses exhibit poor high-temperature aging performance, making it difficult to achieve optimal conditions and resulting in overall product performance stability. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing pipeline performance and provide a high-temperature hot jet start-up hose and its manufacturing process. Through optimal product structure design, the use of different heat-resistant and pressure-resistant materials, product manufacturing process, and high-temperature aging test design, the product performance is optimized to meet the requirements of aviation hot air source and high-frequency use, effectively improving product performance stability.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] On one hand, the present invention provides a high-temperature thermal jet start hose, which includes: a jet start hose, a hose protective sleeve, and a hose adapter;

[0006] The jet start hose includes an inner rubber layer, an outer rubber layer, and a braided skeleton layer, which are arranged in a three-layer structure from the inside to the outside.

[0007] The hose protective sleeve is fitted onto the outside of the jet start hose in a sleeve manner. The hose protective sleeve includes a braided layer, an inner rubber strip, and an outer rubber strip. The inner rubber strip is spirally supported inside the braided layer, and the outer rubber strip is spirally wound around the outside of the braided layer.

[0008] The hose adapter is installed at the end of the jet start hose.

[0009] Furthermore, the Shore A hardness of the inner and outer rubber layers of the jet starter hose is 35°~50°; the braided skeleton layer uses aramid fiber, polyester fiber, or aramid-polyester blended fiber, with a braiding coverage of over 95%.

[0010] Furthermore, the diameter of the jet starter hose ranges from 0.01m to 0.2m, the length ranges from 0.1m to 30m, the adhesive layer thickness is 3 to 5mm, and the fiber diameter of the braided skeleton layer is 0.6mm to 1.8mm.

[0011] Furthermore, the inner rubber strip of the hose protective sleeve has a Shore A hardness of 60°~75° and a thickness of 1~2mm; the outer rubber strip has a Shore A hardness of 60°~75° and a thickness of 2~3mm; the braided layer is made of aramid fiber, polyester fiber, or aramid-polyester blended fiber, with a braiding coverage of 40%~60%.

[0012] Furthermore, the spiral shapes of the inner and outer rubber strips correspond perfectly, maintaining consistency between the inside and outside.

[0013] Furthermore, the hose adapter includes a mandrel and a bushing. One end of the mandrel is inserted into the interior of the jet start hose. The bushing consists of two semi-circular fasteners, which are spliced ​​and fixed together by bolts. After fixing, part of the bushing is tightened on the outside of the hose protective sleeve, and part is tightened on the outside of the mandrel.

[0014] Furthermore, both the mandrel and bushing are made of stainless steel.

[0015] On the other hand, the present invention also provides a manufacturing process for a jet-start hose, which includes the following steps:

[0016] Step 1, Rubber compound preparation: The rubber compound is produced from the open mill and left to stand for more than 24 hours;

[0017] Step 2, Inner layer extrusion molding of tube blank: The extrusion molding machine head temperature is 25℃~45℃, the machine body temperature is 35~55℃, the barrel temperature is 35~55℃, the inner and outer molds are assembled, the traction speed is balanced, the extrusion equipment feeds and extrudes onto the mandrel to form, the equipment vacuum pressure is -0.04~-0.02MPa to exhaust, the inner layer of tube blank is extruded, the surface is smooth and the dimensions are stable;

[0018] Step 3, Extrusion molding of the outer layer of the tube blank: The extrusion molding machine head temperature is 25℃~45℃, the machine body temperature is 35~55℃, and the barrel temperature is 35~55℃. The inner and outer molds are assembled, the traction speed is balanced, the extrusion equipment feeds and extrudes the material onto the mandrel to form the tube blank, the equipment vacuum pressure is -0.08~-0.02MPa to exhaust the air, the outer layer of the extruded tube blank is tightly bonded to the inner layer of the extruded tube blank, there is no delamination between the adhesive layers, the surface is smooth, and the dimensions are stable.

[0019] Step 4, Hose Braiding and Forming: Prepare braiding thread, adjust tension, match the braiding machine speed with the above extrusion traction speed, ensure braiding tension and braiding lead meet the design requirements, achieve a braiding coverage rate of over 95%, and ensure uniform braiding dimensions;

[0020] Step 5, Winding and forming: The speed of the winding machine is matched with the speed of the braiding machine; the winding tension and the winding spacing meet the design requirements, and the winding spacing is uniform.

[0021] Step 6, Vulcanization of the tubing blank: Gradient vulcanization is carried out in a vulcanizing tank. The first stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 95~105℃, and a time of 35~45min; the second stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 125~135℃, and a time of 35~45min; the third stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 155~165℃, and a time of 90~100min.

[0022] Step 7, hose core removal: Use a core removal tool to position the hose and slide it out to remove the core;

[0023] Step 8, Hose Cutting: Using a cutting fixture, the hose is positioned and cut with a cutter to obtain the hose product.

[0024] Furthermore, in the preparation of the rubber compound, the internal mixer is cooled to 15℃~25℃, silicone rubber and reinforcing materials are added, and the mixture is mixed and the bolt is raised twice; plasticizer and vulcanization accelerator are added, and the mixture is mixed and the bolt is raised twice. When the temperature of the rubber compound reaches 40℃~50℃, the material is discharged and the rubber compound reaches the open mill. The roller gap is adjusted to 7~9mm, and the mixture is passed through the open mill 2~3 times. The open mill produces sheet rubber compound, which is then mixed for one stage to prepare the compound rubber compound and left to stand for more than 24 hours.

[0025] Furthermore, the present invention also provides a manufacturing process for a high-temperature thermal jet starter hose, which, based on the manufacturing process of the jet starter hose, further includes hose protective sleeve assembly and hose adapter assembly, wherein:

[0026] The assembly steps for the hose protection kit are as follows:

[0027] Step 1: Cut the hose protective sleeve to its natural length in one go;

[0028] Step 2: Place the hose protective sleeve on the pulley fixture;

[0029] Step 3: Attach a towing rope or towing bar to the jet start hose and thread it through the protective sleeve;

[0030] Step 4: The length of the hose protective sleeve is aligned with the length of the jet start hose, and then it is cut and shaped a second time.

[0031] The assembly steps for the hose adapter are as follows:

[0032] Step 1: Insert one end of the mandrel into the inside of the jet start hose;

[0033] Step 2: Tighten the bushing positioning screws;

[0034] Step 3: Start the hose cleaning process;

[0035] Step 4: Pressure holding performance test to obtain the hot jet start-up hose.

[0036] The beneficial effects of this invention are as follows:

[0037] (1) A high-temperature hot jet starter hose of the present invention has a three-layer structure, with an inner layer, a middle layer of silicone material, and an outer skeleton layer of fiber material. The hose structure adopts an exposed reinforced hard structure of the skeleton braided layer and an internal high-temperature low-hardness silicone tube to increase flexibility and soft structure, which is conducive to vulcanization and degassing. The braided line and silicone form a uniform integrated structure, which effectively improves the soft and hard connection effect between the inner silicone material and the outer skeleton layer fiber material, thereby effectively improving the hose's flexibility and pressure resistance and heat aging resistance.

[0038] (2) The present invention provides a high-temperature hot air jet starting hose, with a hose protective sleeve added to the outside of the hose. The hose and the hose protective sleeve complement each other in terms of their functions. The hose carries the hot air and reduces or even isolates the heat transfer effect of the hot air, protecting the hose protective sleeve from high temperature attack and early aging performance of the protective sleeve material caused by high temperature. The hose protective sleeve bears the friction, tension and flexural forces generated during the hose hot air jet operation, thereby protecting the hose from friction, tension and flexural forces that damage the hose performance.

[0039] (3) The present invention provides a high-temperature hot jet starter hose preparation process. The silicone rubber material is prepared by a one-stage mixing process to avoid the two-stage or multi-stage mixing of low-hardness silicone. Mechanical force affects the consistency of molecular weight and even the degradation of molecular chains, thereby affecting the ultra-high temperature resistance and stress strength performance of low-hardness silicone.

[0040] (4) The high-temperature hot jet starter hose assembly of the present invention has a product structure design that is superior to foreign products. The hose and the hose sheath are combined with a tight fit. The rubber part of the hose and the sheath are tightly assembled, while the mesh fiber part of the hose and the sheath is loosely assembled. The hose and the connector are tightly assembled, and the sheath and the connector are relatively tightly assembled. This improves the deformation consistency of the hose and the sheath, improves the stress synchronization, and effectively improves the hose protection capability. It effectively protects the outer skeleton fiber of the air starter hose and even the entire hose from scratches, as well as the stability of the connector and tensile strength.

[0041] (5) The present invention provides a high-temperature hot jet starter hose manufacturing process. The jet starter hose is formed using an integrated molding technology. The silicone layer is extruded and molded, the skeleton layer is woven and vented, and the winding molding is carried out simultaneously. The pressure of the extrusion molding of the braided thread and the silicone layer is controlled by the size of the braiding tension, which effectively improves the density of the silicone rubber material and the bonding performance between the silicone rubber and the skeleton. It avoids the risk of low-hardness silicone compound material sagging due to the long interval between the silicone layer extrusion molding and the skeleton layer fiber weaving and venting molding, which may lead to the formation of air bubbles or even molding failure in the tube blank.

[0042] (6) The present invention provides a high-temperature hot jet starter hose assembly manufacturing process, which adopts modular molding technology, produces the components simultaneously, and then assembles them into a jet starter hose assembly, which effectively improves the technical versatility and continuity, as well as the dimensional assembly accuracy, thereby improving production efficiency. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural schematic diagram of the high-temperature thermal jet start-up hose of the present invention;

[0044] Figure 2 This is a schematic diagram of the main structure of the high-temperature thermal jet start-up hose of the present invention;

[0045] Figure 3 This is a schematic diagram of the structure of the jet starter hose of the present invention;

[0046] Figure 4 This is a schematic diagram of the structure of the hose protective sleeve of the present invention.

[0047] The markings in the diagram are: 1-jet start hose, 11-inner rubber layer, 12-outer rubber layer, 13-braided skeleton layer, 2-hose protective sleeve, 21-inner rubber strip, 22-braided layer, 23-outer rubber strip, 3-hose adapter, 31-spindle, 32-shaft sleeve. Detailed Implementation

[0048] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] Example 1

[0050] like Figures 1 to 4 As shown, a high-temperature thermal jet starter hose includes: a jet starter hose 1, a hose protective sleeve 2, and a hose adapter 3.

[0051] The jet start hose 1 includes an inner rubber layer 11, an outer rubber layer 13, and a braided wire skeleton layer 13, which are arranged in a three-layer structure from the inside to the outside.

[0052] The hose protective sleeve 2 is installed on the outside of the jet start hose 1 in a sleeve manner. The hose protective sleeve 2 includes a braided layer 22, an inner rubber strip 21 and an outer rubber strip 23. The inner rubber strip 21 is supported inside the braided layer 22 in a spiral manner, and the outer rubber strip 23 is wound around the outside of the braided layer 22 in a spiral manner.

[0053] The hose adapter 3 is installed at the end of the jet start hose 1. The hose adapter 3 includes a mandrel 31 and a bushing 32. One end of the mandrel 32 is inserted into the interior of the jet start hose 1. The bushing 32 consists of two semi-circular fasteners, which are bolted together and fixed. After fixing, part of the bushing is fitted onto the outside of the hose protective sleeve, and part is fitted onto the outside of the mandrel. Both the mandrel and the bushing are made of stainless steel.

[0054] In this embodiment, the Shore A hardness of the inner rubber layer 11 and the outer rubber layer 12 of the jet starter hose is 35°~50°; the braided skeleton layer 13 uses aramid fiber, polyester fiber or aramid-polyester mixed fiber, and the braiding coverage is more than 95%.

[0055] In this embodiment, the diameter of the jet start hose 1 ranges from 0.02m to 0.2m, the length ranges from 0.1m to 30m, the adhesive layer thickness is 3 to 5mm, and the fiber diameter of the braided skeleton layer is 0.6mm to 1.8mm.

[0056] In this embodiment, the inner rubber strip 21 of the hose protective sleeve 2 has a Shore A hardness of 60°~75° and a thickness of 1~2mm; the outer rubber strip 23 has a Shore A hardness of 60°~75° and a thickness of 2~3mm; the braided layer 22 is made of aramid fiber, polyester fiber, or aramid-polyester blended fiber, with a braiding coverage of 40%~60%. The spiral shapes of the inner rubber strip 21 and the outer rubber strip 23 are completely corresponding and consistent inside and out.

[0057] Example 2

[0058] A manufacturing process for a jet-start hose as described in Example 1 includes the following steps:

[0059] Step 1, Rubber compound preparation: The rubber compound is produced from the open mill and left to stand for more than 24 hours;

[0060] Step 2, Inner layer extrusion molding of tube blank: The extrusion molding machine head temperature is 25℃~45℃, the machine body temperature is 35~55℃, the barrel temperature is 35~55℃, the inner and outer molds are assembled, the traction speed is balanced, the extrusion equipment feeds and extrudes onto the mandrel to form, the equipment vacuum pressure is -0.04~-0.02MPa to exhaust, the inner layer of tube blank is extruded, the surface is smooth and the dimensions are stable;

[0061] Step 3, Extrusion molding of the outer layer of the tube blank: The extrusion molding machine head temperature is 25℃~45℃, the machine body temperature is 35~55℃, and the barrel temperature is 35~55℃. The inner and outer molds are assembled, the traction speed is balanced, the extrusion equipment feeds and extrudes the material onto the mandrel to form the tube blank, the equipment vacuum pressure is -0.08~-0.02MPa to exhaust the air, the outer layer of the extruded tube blank is tightly bonded to the inner layer of the extruded tube blank, there is no delamination between the adhesive layers, the surface is smooth, and the dimensions are stable.

[0062] Step 4, Hose Braiding and Forming: Prepare braiding thread, adjust tension, match the braiding machine speed with the above extrusion traction speed, ensure braiding tension and braiding lead meet the design requirements, achieve a braiding coverage rate of over 95%, and ensure uniform braiding dimensions;

[0063] Step 5, Winding and forming: The speed of the winding machine is matched with the speed of the braiding machine; the winding tension and the winding spacing meet the design requirements, and the winding spacing is uniform.

[0064] Step 6, Vulcanization of the tubing blank: Gradient vulcanization is carried out in a vulcanizing tank. The first stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 95~105℃, and a time of 35~45min; the second stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 125~135℃, and a time of 35~45min; the third stage is characterized by a pressure of 0.4~0.6MPa, a temperature of 155~165℃, and a time of 90~100min.

[0065] Step 7, hose core removal: Use a core removal tool to position the hose and slide it out to remove the core;

[0066] Step 8, Hose Cutting: Using a cutting fixture, the hose is positioned and cut with a cutter to obtain the hose product.

[0067] In the preparation of the rubber compound, the internal mixer is cooled to 15℃~25℃, silicone rubber and reinforcing materials are added, and the mixture is mixed and the bolt is raised twice. Plasticizer and vulcanization accelerator are added, and the mixture is mixed and the bolt is raised twice. When the temperature of the rubber compound reaches 40℃~50℃, the material is discharged and the rubber compound reaches the open mill. The roller gap is adjusted to 7~9mm, and the mixture is passed through the open mill 2~3 times. The open mill produces sheet rubber compound. The mixed rubber compound is prepared by mixing for one stage and then left to stand for more than 24 hours.

[0068] Table 1 Performance indicators of the prepared jet starter hose

[0069] Serial Number Experimental Project Test methods index 1 High-temperature burst pressure test After the tubing is aged in hot air at 245℃ for 168 hours, it is cooled to room temperature. The sample is then installed on the test fixture. The air in the test sample is then extracted, and the water pressure inside the tube is increased by a water pump at a rate of 6±0.06MPa / min until the tube bursts. ≥4Mpa 2 Low-temperature burst pressure test After the tubing is subjected to low-temperature aging at -60℃ for 168 hours, it is cooled to room temperature. The sample is then installed on the test fixture, and the air in the test sample is extracted. The water pressure inside the tube is increased by a water pump at a rate of 6±0.06MPa / min until the tube bursts. ≥4Mpa 3 Ozone resistance test Under ozone conditions of 40℃ and 100pphm concentration, the test sample was mounted on the test fixture and placed in a sealed environment for 72 hours before being placed in an ozone aging chamber. After the specified time, the outer surface of the test sample mounted on the test fixture was observed with a 6x magnifying glass to check for cracks. No cracks 4 High-temperature airtightness testing Mount the rubber tubing sample onto the test fixture and place it in an oven. Inject compressed air into the tubing at 0.45±5 MPa. Adjust the oven temperature to 245℃±3 and maintain the pressure for 24 hours. The tubing must not exhibit any leaks or cracks. No cracks, no air leaks 5 Low temperature air tightness test Mount the rubber tubing sample onto the test fixture and place it in an oven. Inject compressed air into the tubing at 0.45±5 MPa. Adjust the oven temperature to -55℃±5°C and maintain the pressure for 120 minutes. The tubing must not exhibit any leaks or cracks. No cracks, no air leaks 6 Connector pull-out test The test was conducted at a speed of 25 mm / min, and no obvious defects such as bubbles were found on the surface. ≥1500N

[0070] Example 3

[0071] A manufacturing process for a high-temperature thermal jet starter hose as described in Embodiment 1, based on the jet starter hose manufacturing process, further includes hose protective sleeve assembly and hose adapter assembly, wherein:

[0072] The assembly steps for the hose protection kit are as follows:

[0073] Step 1: Cut the hose protective sleeve to its natural length in one go;

[0074] Step 2: Place the hose protective sleeve on the pulley fixture;

[0075] Step 3: Attach a towing rope or towing bar to the jet start hose and thread it through the protective sleeve;

[0076] Step 4: The length of the hose protective sleeve is aligned with the length of the jet start hose, and then it is cut and shaped a second time.

[0077] The assembly steps for the hose adapter are as follows:

[0078] Step 1: Insert one end of the mandrel into the inside of the jet start hose;

[0079] Step 2: Tighten the bushing positioning screws;

[0080] Step 3: Start the hose cleaning process;

[0081] Step 4: Pressure holding performance test. After passing the test, the hot jet start-up hose is obtained.

[0082] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of the present invention in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of the present invention. Parts not covered in this invention are the same as or can be implemented using existing technology.

Claims

1. A high-temperature hot-jet starting hose characterized by, The jet starting hose comprises an inner rubber layer, an outer rubber layer and a braided wire skeleton layer, and the inner rubber layer, the outer rubber layer and the braided wire skeleton layer are sequentially arranged in a three-layer structure from inside to outside. The hose protection sleeve is arranged on the outside of the jet starting hose in a sleeving manner, and comprises a braided layer, an inner rubber strip and an outer rubber strip. The inner rubber strip is supported in a spiral manner inside the braided layer, and the outer rubber strip is wound in a spiral manner outside the braided layer. The hose adapter is installed at the end of the jet starting hose. The Shore A hardness of the inner rubber layer and the outer rubber layer of the jet starting hose is 35°-50°.

2. A high-temperature hot-jet starting hose according to claim 1, wherein The fiber wire of the braided wire skeleton layer is made of aramid fiber wire, polyester fiber wire or aramid polyester hybrid fiber wire, and the braiding coverage is more than 95%.

3. A high-temperature hot-jet starting hose according to claim 1, wherein, The diameter of the jet starting hose ranges from 0.02m to 0.2m, the length ranges from 0.1m to 30m, the rubber layer thickness is 3-5mm, and the fiber wire diameter of the braided wire skeleton layer is 0.6mm-1.8mm.

4. A high-temperature hot-jet starting hose according to claim 1, wherein, The Shore A hardness of the inner rubber strip of the hose protection sleeve is 60°-75°, and the thickness is 1-2mm.

5. A high-temperature hot-jet starting hose according to claim 1, wherein, The Shore A hardness of the outer rubber strip is 60°-75°, and the thickness is 2-3mm.

6. A high-temperature hot-jet starting hose according to claim 1, wherein, The fiber wire of the braided layer is made of aramid fiber wire, polyester fiber wire or aramid polyester hybrid fiber wire, and the braiding coverage is 40%-60%.

7. A high-temperature hot-jet starting hose according to claim 6, wherein The spiral shapes of the inner rubber strip and the outer rubber strip are completely corresponding, and the inside and outside are consistent.

8. A process for the production of a gas-starting hose as claimed in claim 1, characterized in that The hose adapter comprises a mandrel and a sleeve, one end of the mandrel is inserted into the inside of the jet starting hose, the sleeve is composed of two half-circular fasteners, the two half-circular fasteners are fixed by being spliced and bolted with each other, and one part of the fixed sleeve is tightly sleeved on the outside of the hose protection sleeve and the other part is tightly sleeved on the outside of the mandrel. The mandrel and the sleeve are made of stainless steel material. The steps comprise the following steps: Step 1, preparation of rubber material: sheeting is obtained by an open mill, and the rubber sheet is stored for more than 24 hours; Step 2, inner layer extrusion molding of pipe blank: the head temperature of the extrusion molding machine is 25-45℃, the body temperature is 35-55℃, the cylinder temperature is 35-55℃, the inner mold and the outer mold are assembled, the traction speed is balanced, the extrusion equipment is fed and extruded on the mandrel to form, the vacuum pressure of the equipment is-0.04--0.02MPa, and the inner layer of the pipe blank is extruded; Step 3, outer layer extrusion molding of pipe blank: the head temperature of the extrusion molding machine is 25-45℃, the body temperature is 35-55℃, the cylinder temperature is 35-55℃, the inner mold and the outer mold are assembled, the traction speed is balanced, the extrusion equipment is fed and extruded on the mandrel to form, the vacuum pressure of the equipment is-0.08--0.02MPa, and the outer layer of the pipe blank is extruded to tightly adhere to the inner layer; Step 4, hose braiding molding: prepare the braided wire, adjust the tension, the braiding speed of the braiding machine matches the above-mentioned extrusion traction speed, the braiding tension meets the design, the braiding lead meets the design, the braiding coverage is more than 95%, and the braided size is uniform; Step 5, winding molding: the winding machine speed matches the braiding machine speed; the winding cloth, the winding tension meets the design, the winding spacing meets the design, and the winding spacing is uniform; Step 6, hose blank vulcanization: using vulcanization tank gradient vulcanization, the first stage, pressure 0.4~0.6MPa, temperature 95~105℃, time 35~45min; the second stage, pressure 0.4~0.6MPa, temperature 125~135℃, time 35~45min; the third stage, pressure 0.4~0.6MPa, temperature 155~165℃, time 90~100min; Step 7, hose core removal: using core removal tooling, rubber tube positioning, sliding core removal; Step 8, hose cutting: using cutting tooling, rubber tube positioning, cutter cutting, obtaining hose product.

9. The process for the preparation of a jet start hose according to claim 8, characterized in that: In the preparation of the rubber material, the internal mixer is cooled to 15℃~25℃, the silicone rubber, reinforcing material are put in, mixed, and the temperature is increased twice; the plasticizer and vulcanization accelerator are put in, mixed, and the temperature is increased twice, when the temperature of the rubber material reaches 40℃~50℃, the material is discharged, the rubber material reaches the open mill, the roller gap is adjusted to 7~9mm, and the rubber material is passed through 2~3 times, the open mill is discharged, and the rubber sheet is obtained, the first stage of mixing is carried out, and the rubber sheet is obtained, and the rubber sheet is stored for more than 24 hours.

10. A process for the production of a high-temperature hot-jet start hose as defined in claim 1, characterized in that On the basis of the preparation process of the jet starting hose of claim 8, further comprising hose protective sleeve assembly and hose adapter assembly, wherein: The hose protective sleeve assembly step is: Step 1, length of the hose protective sleeve is cut once in natural state; Step 2, the hose protective sleeve is placed on the pulley tooling; Step 3, the jet starting hose is added with a traction rope or a traction rod, and is inserted into the protective sleeve; Step 4, the length of the hose protective sleeve is matched with the length of the jet starting hose, and is cut twice for shaping; The hose adapter assembly step is: Step 1, one end of the mandrel is inserted into the inside of the jet starting hose; Step 2, the shaft sleeve is positioned and tightened; Step 3, the starting hose is cleaned and washed; Step 4, the pressure maintaining performance is detected, and the hot jet starting hose is obtained after the detection is qualified.

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