CN110978571A - Special mixed gas formula for plasma environment-friendly shoe material treatment equipment - Google Patents
Special mixed gas formula for plasma environment-friendly shoe material treatment equipment Download PDFInfo
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- CN110978571A CN110978571A CN201911379905.3A CN201911379905A CN110978571A CN 110978571 A CN110978571 A CN 110978571A CN 201911379905 A CN201911379905 A CN 201911379905A CN 110978571 A CN110978571 A CN 110978571A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0081—After-treatment of articles without altering their shape; Apparatus therefor using an electric field, e.g. for electrostatic charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0072—After-treatment of articles without altering their shape; Apparatus therefor for changing orientation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/504—Soles
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention provides a special mixed gas formula for plasma environment-friendly shoe material treatment equipment. The special mixed gas formula for the plasma environment-friendly shoe material processing equipment comprises pure oxygen or mixed gas of oxygen and argon. The advantages are that: the method has the advantages that the method is pollution-free, toxic and harmful substances are not contained in the working gas, only oxygen and argon are contained, new toxic and harmful substances are not generated in the reaction process, and the method is environment-friendly; the processing effect is good, the product quality is high, oxygen forms strong oxidizing oxygen ions after being ionized, the oxygen ions can react with hydrocarbon on the surface of the shoe material to form hydroxyl and carboxyl, the polarity of the shoe material is changed from electrodeless to polar, the surface adhesive force and the hydrophilic performance of the shoe material are improved, the sole and the vamp are bonded more firmly and reliably, the problem of glue failure is avoided, the specific surface area can be improved by argon, and the product percent of pass is 100% after test verification.
Description
Technical Field
The invention relates to a special mixed gas formula for plasma environment-friendly shoe material treatment equipment.
Background
At present, the quality of shoes receives more and more attention, and the shoemaking in-process, the bonding quality between sole and the vamp is the key of shoes quality, and the not good easy problem such as split of appearing of bonding is glued. Most of the existing shoe materials, especially sole materials, are high molecular polymer materials, such as EVA, TPR, TPU, ETPU, which have no polarity and poor adhesion capability, so that the sole needs to be pretreated before being adhered to the vamp.
The existing sole material treatment process mostly adopts manual work, the UV treatment agent is coated on the surface of a shoe material, heating and baking are carried out, then UV irradiation is carried out, under the irradiation of ultraviolet light, substances in the UV treatment agent are cracked, free radicals are released, the free radicals and the surface of the shoe material are initiated to carry out graft copolymerization reaction, the surface polarity of the shoe material is enhanced, the adhesive force between the shoe material and a vamp is improved, and the phenomenon that glue is separated at the matching part of the vamp and the sole is avoided. The traditional treatment mode generally needs 8-10 persons for matching operation, and has low efficiency, time and labor waste, high cost, large labor capacity, serious pollution, and liquid medicine containing volatile organic compounds which are harmful to the health of workers; the process has low automation level and low efficiency; the running cost is high, and the liquid medicine consumption is big, and owing to can discharge VOCs, not only harm workman healthy but also the polluted environment, lead to the cost increase of enterprise and face the risk of renovating.
In contrast, the technology of treating shoe materials by using plasma appears in the market, the shoe materials are placed in a vacuum chamber, an electrode group connected with a radio frequency power supply is arranged in the vacuum chamber, working gas is introduced to treat the shoe materials, but the treatment effect is poor in the using process, which is mainly shown in that glue is formed between the shoe materials and the vamp, and the product quality and the public praise are greatly influenced.
Disclosure of Invention
The invention provides a special mixed gas formula for plasma environment-friendly shoe material treatment equipment, which aims to solve the technical problem that shoe materials treated by the existing plasma shoe material treatment equipment are easy to glue.
The technical scheme of the invention is realized as follows:
including oxygen or a mixture of oxygen and argon.
The working principle is as follows: oxygen is ionized between electrode groups of the plasma chamber to form plasma (free electrons, oxygen ions and the like), wherein the oxygen ions have strong oxidizing property, the particle energy in the plasma is 10-20eV, most bond energy (such as C = O bond energy 8eV, C-H bond energy 4.3 eV, C-C bond energy 3.4 eV and C = C bond energy 6.1 eV) in the shoe material polymer is 0-10eV, the plasma can destroy the chemical bonds on the surface of the polymer (shoe material) and form new active groups (hydroxyl and carboxyl with strong hydrophilicity, plasma grafting reaction), the shoe material is modified from electrodeless to polar, the adhesion force and the hydrophilic property on the surface of the shoe material are improved, and the shoe material is firmer and less prone to glue opening when being bonded with a vamp through glue; while argon gas increases the specific surface area.
On the basis of the scheme, the oxygen content in the mixed gas is further improved to be not less than 40%.
On the basis of the scheme, the method is further improved as follows, wherein the ratio of oxygen to argon is 1: 1.
on the basis of the scheme, the oxygen concentration is more than 99.8% through further improvement.
On the basis of the scheme, the method is further improved in that the volume ratio of oxygen to argon is 1: 1-1: 5 for the ETPU shoe material.
On the basis of the scheme, the method is further improved in that the volume ratio of oxygen to argon is 5: 1-1: 1 for the ETPU shoe material.
By adopting the technical scheme, the invention has the beneficial effects that:
(1) the method has the advantages that the method is pollution-free, the working gas does not contain toxic and harmful substances, only oxygen and argon are used, new toxic and harmful substances cannot be generated in the reaction process, the method is very environment-friendly, operators cannot inhale the toxic and harmful substances, and shift is not needed to avoid the inhalation of excessive harmful gas, so that the working environment is greatly improved;
(2) the method has the advantages that the treatment effect is good, the product quality is high, the plasma technology is adopted, the particle energy of plasma formed by oxygen ionization is 10-20eV, most bond energy of polymers of shoe materials is 0-10eV, chemical bonds on the surfaces of the polymers can be damaged, new active groups are formed, oxygen forms oxygen ions with strong oxidizing property after being ionized, the oxygen ions can react with hydrocarbon on the surfaces of the shoe materials to form hydroxyl and carboxyl, the polarity of the shoe materials is changed from electrodeless to polar, the surface adhesive force and the hydrophilic property of the shoe materials are improved, the sole and the vamp are bonded more firmly and reliably, the problem of glue failure cannot occur, the specific surface area can be improved by argon, and the product percent of pass is 100% after being verified by experiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view showing the appearance of the gas mixture formulation dedicated for the plasma environmental-friendly shoe material treatment equipment of the present invention;
FIG. 2 is a perspective view of the plasma processing apparatus;
FIG. 3 is a front view of the plasma processing apparatus;
FIG. 4 is a front view in longitudinal section of the plasma processing apparatus;
FIG. 5 is a perspective view of the inner core component of FIG. 2;
FIG. 6 is a longitudinal sectional view of FIG. 5;
FIG. 7 is a perspective view of the relay mechanism;
FIG. 8 is a perspective view of the housing of the plasma chamber;
fig. 9 is a perspective view showing a transmission portion of the plasma processing apparatus;
FIG. 10 is a perspective view of an electrode plate within the housing;
FIG. 11 is a block diagram of the overall process flow;
wherein: 1-a rack, 11-a main machine body, 111-a guide rod, 12-an auxiliary machine body, 2-a feeding conveying mechanism, 3-a transfer mechanism, 31-an upper conveying mechanism, 311-an annular groove, 32-a lower conveying mechanism, 4-a plasma chamber, 41-an air inlet, 42-an air outlet, 43-a cover body, 44-a bottom plate, 5-a backflow conveying mechanism, 201-a chain wheel, 202-a chain, 203-a guide strip, 6-an electrode plate and 7-a touch display screen; 8-radio frequency power supply, 9-lifting cylinder, 10-slide block, 20-three-color warning lamp, 30-power knob and 40-electric body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The specific embodiment of the special mixed gas formula for the plasma environment-friendly shoe material treatment equipment comprises the following steps: comprises oxygen or mixed gas of oxygen and argon, and the content of the oxygen is determined according to the types of different shoe materials.
The working principle is as follows: oxygen is ionized between electrode groups of the plasma chamber to form plasma (free electrons, oxygen ions and the like), wherein the oxygen ions have strong oxidizing property, the particle energy in the plasma is 10-20eV, most bond energy (such as C = O bond energy 8eV, C-H bond energy 4.3 eV, C-C bond energy 3.4 eV and C = C bond energy 6.1 eV) in the shoe material polymer is 0-10eV, the plasma can destroy the chemical bonds on the surface of the polymer (shoe material) and form new active groups (hydroxyl and carboxyl with strong hydrophilicity, plasma grafting reaction), the shoe material is modified from electrodeless to polar, the adhesion force and the hydrophilic property on the surface of the shoe material are improved, and the shoe material is firmer and less prone to glue opening when being bonded with a vamp through glue; while argon gas increases the specific surface area.
The gas is a working gas special for the plasma environment-friendly shoe material processing equipment, and in order to better understand other functions, the plasma environment-friendly shoe material processing equipment is introduced firstly:
as shown in fig. 1-10, the special mixed gas formula for the plasma environment-friendly shoe material processing equipment comprises a frame 1, wherein the frame 1 comprises a main machine body 11 and a left auxiliary machine body 12 (located on the left side) and a right auxiliary machine body 12 (located on the right side) which are symmetrically arranged on two sides of the main machine body 11, a feeding conveying mechanism 2 is arranged on the left auxiliary machine body 12, a plasma chamber 4 and a transfer mechanism 3 are arranged on the main machine body 11, and a backflow conveying mechanism 5 is arranged on the right auxiliary machine body 12; a radio frequency power supply 8 is also arranged in the main machine body 11; the plasma chamber 4 is a closed chamber and comprises a cover body 43 and a bottom plate 44 which can be separated, wherein the cover body 43 is provided with an air inlet 41 and an air outlet 42, the air inlet 41 is connected with a working gas supply device (not shown in the figure) through an air inlet pipe, the working gas supply device comprises an oxygen tank, an argon tank, a control valve, a flowmeter and the like, the air outlet 42 is connected with a vacuumizing device (not shown in the figure) through a vacuumizing connector, the cover body 43 and the bottom plate 44 are respectively provided with an electrode plate 6 to form an electrode group, the electrode group is connected with a radio frequency power supply 8, and a plasma processing space for; the transfer mechanism 3 comprises an upper transfer mechanism and a lower transfer mechanism, a bottom plate 44 is arranged on the upper transfer mechanism 31, the upper transfer mechanism and the lower transfer mechanism can drive shoe materials to be transferred along the left-right direction, a lifting cylinder 9 is arranged at the lower part of the lower transfer mechanism 32 to drive the transfer mechanism 3 to move up and down, the transfer mechanism 3 is provided with an upper working position and a lower working position on the movement stroke, when the upper working position is adopted, the bottom plate 44 of the upper transfer mechanism 31 is in butt joint with the cover body 43, and the lower transfer mechanism 32 is in horizontal butt joint with the feeding conveying mechanism 2 and the backflow conveying mechanism 5; when the device is at the lower working position, the upper conveying mechanism 31 is horizontally butted with the feeding conveying mechanism 2 and the backflow conveying mechanism 5 at the same time; the feeding and conveying mechanism 2 and the backflow conveying mechanism 5 are used for conveying the shoe materials on the feeding and conveying mechanism in the left-right direction.
In this embodiment, the feeding and conveying mechanism 2 and the return conveying mechanism 5 are provided with guide strips 203 for guiding the shoe materials, and the guide strips 203 extend in the left-right direction. The electrode on the cover 43 is a tubular electrode. The upper and lower conveying mechanisms each include a motor, a sprocket 201, and a chain 202. The feeding conveying mechanism 2 and the backflow conveying mechanism 5 each include a motor, a sprocket 201, and a chain 202. The main body 11 is provided with a vertically arranged guide rod 111, and the transfer mechanism 3 is in sliding fit with the guide rod 111 through a slider 10. The four corners of the transfer mechanism 3 are respectively provided with a sliding block 10, and the main body 11 is provided with a guide rod 111 corresponding to each sliding block 10. The telescopic rod of the lifting cylinder 9 is connected with the center of the lower part of the transfer mechanism 3. The upper surface of the upper conveying mechanism 31 of the transfer mechanism 3 is provided with an annular groove 311, and an elastic sealing ring is arranged in the annular groove 311. The slider 10 is equipped with balls which are in rolling engagement with the guide rods 111.
Regarding the workflow of the device: the first batch of shoe materials are placed in a tray and are conveyed to a conveying mechanism on the upper layer of a transfer mechanism along with a feeding conveying mechanism, an air cylinder pushes the transfer mechanism to integrally rise to be in butt joint with a cover body of a plasma chamber to form a closed plasma chamber for plasma treatment, after the treatment is finished, the air cylinder drives the transfer mechanism to descend, the conveying mechanism on the upper layer of the transfer mechanism conveys the treated tray to a backflow conveying mechanism rightwards, then the second batch of shoe materials are conveyed to the upper layer of the transfer mechanism along with the tray, the transfer mechanism rises under the push of the air cylinder, the second batch of shoe materials are placed in the plasma chamber to start treatment, at the moment, the lower layer of the transfer mechanism is positioned at a position flush with the feeding conveying mechanism, at the moment, the first batch of shoe materials which are treated and placed on the backflow conveying mechanism are conveyed leftwards in sequence and conveyed to the feeding conveying mechanism through the lower layer of the transfer mechanism to be discharged, the second batch of shoe material repeats the sequential processing of the first batch of shoe material.
Further, in this embodiment, as shown in fig. 2, the plasma processing apparatus includes a frame 1, a feeding and conveying mechanism 2, a transfer mechanism 3, a plasma chamber 4, a tray (not shown in the figure, a frame structure made of a metal mesh plate), a return conveying mechanism 5, etc., wherein the feeding and conveying mechanism 2 and the return conveying mechanism 5 have the same structure, and each of the feeding and conveying mechanism 2 and the return conveying mechanism 5 includes a motor, a sprocket 201, a chain 202, and a guide strip 203, etc., after the tray is placed on the tray, the motor drives the sprocket 201 to rotate, the sprocket 201 drives the chain 202 to rotate, the chain 202 drives the tray placed on the chain to move, the guide strips 203 are symmetrically arranged on two sides of the tray for guiding the tray, the feeding and conveying mechanism 2 and the return conveying mechanism 5 are respectively arranged on two sides of the main body 11, the height of the main body 11 is twice that of the two sub-bodies 12, the main body 11 is provided with, therefore, when the shoe material is conveyed to the transfer mechanism 3, the shoe material is also directly placed on the bottom plate of the plasma chamber 4, and the interface sealing structure, such as a sealing ring, a sealing gasket or a sealing air bag, is arranged on the butt joint surface of the transfer mechanism 3 and the cover body of the plasma chamber 4, so that a closed plasma chamber 4 is formed after butt joint, and the subsequent air tightness during vacuumizing and inflating is facilitated. As shown in fig. 2, 5, 6, and 8, an air inlet 41 and an air outlet 42 are respectively disposed on two sides of the cover body of the plasma chamber 4, and respectively connected to a working gas supply device and a vacuum pumping device, wherein the working gas supply device includes a gas tank, a safety valve, a control valve, a flow meter, and the like, and the vacuum pumping device includes a vacuum pump, a valve, and a sensor for detecting the pressure inside the plasma chamber 4. As shown in fig. 7, a cylinder is arranged on the frame, the cylinder pushes the transfer mechanism to move up and down along the guide rod, the transfer mechanism 3 serves as a bottom plate of the plasma chamber 4 in addition to transfer, specifically, the transfer mechanism comprises an upper layer and a lower layer, and the upper layer is provided with an electrode plate 6 and a transmission mechanism such as a motor, a chain wheel and a chain; the lower layer is provided with a motor, a chain wheel, a chain and other transmission mechanisms; the electrode plate 6 is a lower electrode of the plasma generator, the other electrode plate 6 is arranged at the top of the plasma chamber 4, a plasma working area is formed between the two electrode plates 6, working gas is ionized in the area to form plasma, the upper layer conveying mechanism of the transfer mechanism 3 can realize the purpose of transferring the tray between the left feeding conveying mechanism and the right discharging backflow conveying mechanism 5, and the lower layer conveying mechanism and the upper layer conveying mechanism of the transfer mechanism have the same function. In addition, the equipment is also provided with a PLC controller, a touch display screen 7, a power switch and other human-computer interaction components, so that the operation of workers on the equipment is realized.
To illustrate the effect of plasma on the uniform treatment of shoe materials, the following description is provided for the principles used in the apparatus:
plasma (Plasma) is a substance form mainly composed of free electrons and charged ions, widely exists in the universe, is considered as a fourth state of a substance juxtaposed to a solid, liquid, or gas, is composed of a large number of free electrons and ions, and exhibits charge neutrality as a whole.
The plasma is divided into low-temperature plasma and high-temperature plasma, the invention uses the low-temperature plasma, and the low-temperature plasma is generally generated by a gas discharge mode. The gas discharge modes generally include the following modes: glow discharge, corona discharge, dielectric barrier discharge, radio frequency discharge, and microwave discharge. In this embodiment, a high voltage is formed between the two electrode plates by applying a high power, so that oxygen is broken down, oxygen molecules are gradually discharged from an initial insulating state and broken down, the molecular structure of oxygen is broken down, chemical bonds are broken, and a large amount of oxygen radicals are generated.
In the case that the radicals generated by plasma surface activation or plasma-initiated polymerization layer can not be firmly combined with the surface of the material, the plasma grafting method is often adopted for improvement. The principle of plasma grafting is as follows: firstly, surface activation is utilized to generate new active groups on the surface of a material, the groups are utilized to generate chemical covalent bond combination with subsequent active substances, and the subsequent active substances are provided with specific groups capable of meeting the application, so that the purposes of meeting the surface characteristics and firmly combining are achieved.
After oxygen is broken down to form plasma, in the plasma, the coulomb force among the charged particles is long-range force, the action effect of the coulomb force is far more than the local short-range collision effect possibly generated by the charged particles, and when the charged particles in the plasma move, positive charges or negative charges can be locally concentrated to generate an electric field; the charge directional movement causes current to generate a magnetic field, and the electric field and the magnetic field influence the movement of other charged particles and are accompanied by extremely strong heat radiation and heat conduction; the plasma can be constrained by a magnetic field to make a cyclotron motion, and the like.
On the basis, in order to enable the formed plasma to be distributed more uniformly when acting on the surface of the shoe material, the direction of the plasma is changed by adding a bias electric field in the plasma chamber, so that the plasma is distributed more uniformly.
The corresponding process method of the equipment is as follows, as shown in fig. 11, and mainly comprises the following steps:
1) polishing;
2) washing with water;
polishing and washing are pretreatment modes for the surfaces of shoe materials in the prior art, and some shoe materials can be not provided with a polishing process, so that the two steps are used for cleaning stains, dirt and the like on the surfaces of the shoe materials.
3) Feeding, wherein in the step, workers uniformly place shoe materials on a tray placed on the upper part of a feeding and conveying mechanism, and the tray is made of a metal mesh plate and can be freely penetrated by plasma;
4) the feeding conveying mechanism feeds materials to the transfer mechanism, a motor of the feeding conveying mechanism rotates to drive the chain wheel and the chain to rotate, so that the tray on the feeding conveying mechanism is driven to move from left to right and is guided by the guide strip during movement until the tray is moved to the transfer mechanism in the position shown in fig. 2, and the motor of the transfer mechanism drives the chain wheel and the chain to rotate to adjust the position of the tray to the midpoint;
5) the transfer mechanism is carried and lifted, the transfer mechanism and the upper cavity are enclosed to form a closed plasma chamber, the shoe material is positioned in the plasma chamber and positioned on the metal mesh plate of the tray, wherein the bottom surface of the shoe material on the upper layer of metal mesh plate faces downwards, the surface to be processed faces upwards, the bottom surface of the shoe material on the lower layer of metal mesh plate faces upwards, the surface to be processed faces downwards, and therefore the surface to be processed of the shoe material is opposite to the electrode plate closest to the transfer mechanism;
6) vacuumizing the chamber, and vacuumizing the plasma chamber to 20-35 Pa by using a vacuumizing device;
7) filling working gas (containing O) in the chamber2) Supplying oxygen or a mixed gas of oxygen and argon into the plasma chamber through the working gas supply device;
8) starting a plasma generator, applying a bias electric field, and processing for 20-120 s;
9) the transfer mechanism carries the shoe materials to descend to the middle position, and meanwhile, the second batch of shoe materials are loaded to the plasma chamber for processing;
10) the backflow conveying mechanism carries the carried tray for discharging.
When the device is used, the working process of the whole device comprises starting, selecting a corresponding gas formula according to the type of the shoe material, waiting for a starting signal, starting a working shaft of the generator, waiting for a stopping signal, stopping the closing shaft of the generator and stopping and shutting down.
The specific device boot process is as follows:
1) opening the oxygen cylinder valve and observing the digital dial
2) Turning ON the power supply of the device by knob (Turn to "ON")
3) Observing whether the tray is on the feeding station, cleaning the upper layer and cleaning the lower layer, and pulling the tray to the bottom
4) If the tray is not placed correctly, the tray needs to be corrected and placed correctly by people
5) Pressing the scram button and then bouncing the scram button
6) Clicking a reset button, enabling the equipment to enter initialization, watching whether an original point state indicator lamp is on or not in a monitoring picture, completing resetting, and enabling the original point to be on "
7) The product to be treated is placed in the material inlet position, the sole surface of the upper layer shoe material faces downwards, and the sole surface of the lower layer shoe material faces upwards
8) Clicking the 'start' button, the equipment automatically enters into the self-running mode
9) If the production leaves midway, the operator needs to click the 'linkage/single action' button, if the production is continued, the 'linkage' is switched to
10) When the production is finished or the machine needs to be stopped off duty, the last tray product is cleaned, the cavity is descended to the right position, and the material cleaning in the monitoring picture is clicked to be changed into the material cleaning "
11) Taking out the products in the tray, clicking 'start' to take out the products in sequence
12) Turning the power knob OFF turns OFF the power
13) Close oxygen cylinder valve (catalyst cylinder valve)
Experimental example:
the experiment was carried out using the above method and using the conditions described in the following table to obtain the corresponding results in the table, which is shown in detail in the table:
aiming at different shoe materials, the corresponding oxygen concentration is adjusted to achieve better treatment effect. For example: all shoe materials can generally achieve the effect by oxygen with the purity of more than 99.8 percent. Aiming at common ETPU, oxygen and argon are required to be doped at the same time, the effect can be generated according to the proportion of 1: 1-1: 5 or 5: 1-1: 1, and the specific condition is specifically analyzed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The special mixed gas formula for the plasma environment-friendly shoe material processing equipment is characterized by comprising pure oxygen or mixed gas of oxygen and argon.
2. The special gas mixture formula for the plasma environment-friendly shoe material processing equipment as claimed in claim 1, wherein the content of oxygen in the gas mixture is not less than 40%.
3. The formula of the gas mixture specially used for the plasma environmental-friendly shoe material processing equipment as claimed in claim 2, wherein the ratio of oxygen to argon is 1: 1.
4. the special mixed gas formula for the plasma environment-friendly shoe material processing equipment according to claim 1, wherein the oxygen concentration is more than 99.8%.
5. The special mixed gas formula for the plasma environment-friendly shoe material processing equipment according to claim 1, wherein the volume ratio of oxygen to argon is 1: 1-1: 5 for the ETPU shoe material.
6. The special mixed gas formula for the plasma environment-friendly shoe material processing equipment according to claim 1, wherein the volume ratio of oxygen to argon is 5: 1-1: 1 for the ETPU shoe material.
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Application publication date: 20200410 |