CN107874348A - The preparation method and structure of electrical safety helmet - Google Patents
The preparation method and structure of electrical safety helmet Download PDFInfo
- Publication number
- CN107874348A CN107874348A CN201711175226.5A CN201711175226A CN107874348A CN 107874348 A CN107874348 A CN 107874348A CN 201711175226 A CN201711175226 A CN 201711175226A CN 107874348 A CN107874348 A CN 107874348A
- Authority
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- China
- Prior art keywords
- foamed aluminium
- preparation
- resin
- safety cap
- helmet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000004411 aluminium Substances 0.000 claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 239000012943 hotmelt Substances 0.000 claims abstract description 3
- 238000010128 melt processing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000011152 fibreglass Substances 0.000 claims description 7
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 10
- 239000011257 shell material Substances 0.000 description 10
- 230000035939 shock Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 238000010292 electrical insulation Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
- A42C1/00—Manufacturing hats
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B1/00—Hats; Caps; Hoods
- A42B1/04—Soft caps; Hoods
- A42B1/08—Soft caps; Hoods with protection against blows
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
The invention discloses a kind of preparation method of electrical safety helmet and structure, using machining mode to the carry out type body processing of foamed aluminium middle core body, drilling processing is carried out to it again after obtaining foamed aluminium helmet shell, by mould based on foamed aluminium helmet shell, processing is dried in the safe cap surface of foamed aluminium, the composite for preparing resin-case is subjected to hot melt processing, make it have certain mobility uniform surface for being coated in foamed aluminium helmet shell afterwards, enter simultaneously vacuum adsorbed, guarantee resin is bonded with foamed aluminium helmet shell, polishing grinding is carried out after solidification to be cooled, complete the preparation of helmet structure main body.For the present invention using foamed aluminium middle core body and the design technology of resin compounded, both high-strength light, had excellent Anti-impact shock-absorbing performance again, will ensure the life security of on-site personnel to a greater extent.
Description
Technical field
The present invention relates to a kind of preparation method of electrical safety helmet and structure.
Background technology
Safety cap is the shallow dome cap of the steel or similar raw material for protecting the crown and wearing, and prevents alluvium from injuring
The protective articles on head.When operation person head is impacted by falling object, the qualified safety cap in a top can pass through cap shell, cap
Lining on the whole area that moment first decomposes impulsive force cranium, then using the elastic deformation of each position buffer structure,
Plastic deformation and the structure allowed are destroyed and absorb most of impulsive force, and the impulsive force for making finally to be applied to person head is reduced to
Below 4900N, so as to play the head protection effect to operating personnel.
At present, the domestic material for being used to manufacturing protecting helmet shell mainly have ABS (by three kinds of acrylonitrile, J- alkene and the third ethene into
Point be combined into), PP (polypropylene), PE (high density polyethylene (HDPE)) and fiberglass etc..The wherein plastic safety helmet such as ABS, PP, PE
Period of validity be two-and-a-half years, the term of validity of fiberglass (including polyvinyl steel) safety cap is usually no more than three and half, and state now
Most of safety cap sold in interior safety cap market is that ABS materials are processed making by Shooting Technique, is fixed
Production model also constrains the selection of material simultaneously.
Compared to the safety cap of other materials, fiberglass safety cap typically has intensity height, good electrical property, corrosion resistance and good
Deng remarkable advantage, but there is also modulus of elasticity it is low it is yielding, long-term temperature tolerance is poor, interlaminar shear strength is low and easy aging
Shortcoming.Easily cause hydraulic performance decline or even have to jeopardize under the effect such as ultraviolet, dust storm sleet, chemical mediator, mechanical stress
The phenomenon of operating personnel's life security occurs.
If it is possible to find a kind of high-strength light, fine heat-resisting performance, corrosion-resistant, anti-aging, shock resistance is excellent
Different new material is used to make helmet shell material, will can extend the service life of safety cap, and protect to a greater extent
Hinder the life security of on-site personnel.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that the preparation method and structure of a kind of electrical safety helmet, the present invention can
Extend the service life of safety cap, and ensure the life security of on-site personnel to a greater extent.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of preparation method of electrical safety helmet, foamed aluminium middle core body carry out type body is added using machining mode
Work, drilling processing is carried out to it again after obtaining foamed aluminium helmet shell, mould based on foamed aluminium helmet shell will steep
Processing is dried in the safe cap surface of foam aluminium, and the composite for preparing resin-case is carried out into hot melt processing, is made it have certain
Mobility after it is uniform be coated in the surface of foamed aluminium helmet shell, while enter vacuum adsorbed, ensure resin and bubble
The fitting of foam aluminium helmet shell, polishing grinding is carried out after solidification to be cooled, complete the preparation of helmet structure main body.
Preferably, resin-case uses resin type material, EPDM+PPS66, is mixed by a certain percentage.Proportion
It is 2:1-1:2.
Preferably, resin-case is mixed with and formed using polytetrafluoroethylene (PTFE) and silicone rubber, proportion 5:1-1:
5.There is good toughness, the high characteristic of intensity after solidification.
Preferably, the resin-case is mixed with and formed using fiberglass and 192 resins, proportion 5:1-1:5.
It has the characteristic that hardness is high, wear-resisting, transparency is high.
Further, using at least 3 pieces of 50-70mm foam aluminium plates be bonded it is compound, by be bonded it is compound after bulk
Inclusion is processed as foamed aluminium middle core body matrix, builds and CNC milling machine is transferred to the profile of safety cap to foamed aluminium peace
Full cap is processed, and first carries out milling to the inner chamber of safety cap, then profile is processed.
Further, safety cap entirety wall thickness is controlled to be less than or equal to 5mm in process.
Further, the polishing grinding of safety cap is carried out after solidification to be cooled, keeps the coating layer thickness of safe cap surface
Unanimously.
A kind of helmet structure, is prepared by the above method.
Compared with prior art, beneficial effects of the present invention are：
The present invention is using foamed aluminium middle core body and the design technology of resin compounded, and both high-strength light, had excellent again
Anti-impact shock-absorbing performance, the life security of on-site personnel will be ensured to a greater extent；
The present invention is made it have not using foamed aluminium middle core body and the design technology of resin compounded, the high-melting-point of foamed aluminium
The characteristics such as combustion, heat-insulated, heat resistance be good；
The present invention has that corrosion-resistant, service life is long, can using the design technology of foamed aluminium middle core body and resin compounded
The excellent properties such as recycling, green, while prepared and worked well using high-temperature vacuum absorption method, forming quality is high, and
And coating layer thickness can control, required effect is reached；
The present invention is using foamed aluminium middle core body and the design technology of resin compounded, excellent insulation performance；
The structure cost of raw material that the present invention selects is cheap, and preparation technology is simple, is adapted to extensive in power generation field
Promote.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is safety cap schematic cross-section of the present invention；
Fig. 2 is the safety cap overall structure diagram of the present invention；
Fig. 3 is the lining of helmet schematic diagram of the present invention；
Fig. 4 is the safety cap junction button schematic diagram of the present invention；
Wherein, 1, resin-case, 2, foamed aluminium middle core body, 3, safety cap connecting hole, 4, lining of helmet, 5, liner connects
Connect hole, 6, the elastic buckle of safety cap, 7, junction button.
Embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the present invention, term as " on ", " under ", "left", "right", "front", "rear", " vertical ", " level ", " side ",
The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, only to facilitate describing this hair
Bright each part or component structure relation and the relative determined, not refer in particular to either component or element in the present invention, it is impossible to understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " should be interpreted broadly, and expression can be fixedly connected,
Can also be integrally connected or be detachably connected；Can be joined directly together, can also be indirectly connected by intermediary.For
The related scientific research of this area or technical staff, the concrete meaning of above-mentioned term in the present invention can be determined as the case may be,
It is not considered as limiting the invention.
As background technology is introduced, there is that the term of validity is short, low yielding, the long-term heatproof of modulus of elasticity in the prior art
Property poor, the low and easy aging of interlaminar shear strength deficiency, in order to solve technical problem as above, present applicant proposes a kind of new
The anti-aging electrical safety helmet design method of type high-strength light.
As depicted in figs. 1 and 2.First using machining mode to the carry out type body processing of foamed aluminium middle core body 2, processing
Drilling processing is carried out to it again after obtaining foamed aluminium helmet shell.Mould based on the foamed aluminium middle core body 2, by resin
Housing 1 is brushing and being attached to the surfaces externally and internally of foamed aluminium middle core body 2 by way of vacuum suction.
Resin-case is made using resin type material, and the material that the present invention uses is EPDM+PPS66, by certain ratio
Example is mixed.EPDM+PPS66 is mixed by rubber and High performance plastic resin, and hardness is high, and cementability is strong, together
When be also equipped with certain toughness.
Resin-case is made using the mixing of polytetrafluoroethylene (PTFE)+silicone rubber, has good toughness after solidification, and intensity is high
Characteristic.Resin-case is made using the mixing of the resin of fiberglass+192, and it has the characteristic that hardness is high, wear-resisting, transparency is high.
As shown in Figure 3, Figure 4, lining of helmet 4 passes through safety cap connecting hole with foamed aluminium middle core body 2 using junction button 7
3rd, liner connecting hole 5 is sequentially connected fixation, can adjust wearing elasticity by the elastic buckle 6 of safety cap during wearing.
As another embodiment, foamed aluminium intermediate core part is optional, and color density is small, intensity is high, shock resistance subtracts
The excellent metal of shock stability or insulating materials replace.Other, which can be selected, in resin portion has certain electric insulation, fire-retardant, high-low temperature resistant
Material replace.
It is mainly foamed aluminium and resin compounded from safe cap material.
Lining of helmet is connected successively with foamed aluminium middle core body using junction button by safety cap connecting hole, liner connecting hole
Connect fixation.
Resin-case used in the present invention is made using resin type material, and hardness is high, and cementability is strong, is also equipped with simultaneously
Certain toughness.The EPDM+PPS66 that including but not limited to mixes by a certain percentage, polytetrafluoroethylene (PTFE)+silicone rubber, fiberglass+
The materials such as 192 resins.
Foamed aluminium middle core body is processed using CNC milling machine in the present invention, and dimensional accuracy is high.
The preparation technology that foamed aluminium middle core body and resin compounded are combined using brushing with vacuum suction in the present invention, is carried
High bond area and adhesive strength.
To embody the excellent properties of the safety cap of the present invention, respectively to foamed aluminium core body safety cap and common ABS safety caps
Performance test is carried out, and records the successive value and peak surveyed during this.Utilize formulation movement of falling object strike of dropping hammer
Safety cap, gather the stress of safety cap.
According to impact property detection method specified in GB/T 2812-2006, test data collection is carried out.
Test device underlying parameter：Drop hammer 5kg；Freely falling body height of dropping hammer 1m；Transducer range 20000N, precision ±
0.02% (FS)；Data processing software system, carrying out data, record is shown with stress curve in real time.According to GB/T 2811-2007
Specified in safety cap fundamental technology performance index, following standard need to be reached and can determine that to be qualified：
1) shock absorbing capability
According to method as defined in 4.3 in GB/T 2811-2007, after high temperature, low temperature, immersion, ultraviolet irradiation pretreatment
Shock-testing is done, the power being delivered on head mould is no more than 4900N, and cap shell there must not be fragment to come off.
2) paracentesis resistance energy
According to method specified in GB/T 2812-2006, done after high temperature, low temperature, immersion, ultraviolet irradiation pretreatment
Puncture test, steel pricker must not contact head mould surface, cap shell must not have fragment to come off.
3) electrical insulating property
Tested according to method specified in GB/T 2812-2006, Leakage Current must not exceed 1.2mA, and can not have
Punch-through.
Take 9 top foamed aluminium core body safety caps and common ABS safety caps to be numbered respectively, be grouped according to sample number into spectrum
Test.
Foamed aluminium core body safety cap：P1、P2...P9；
Common ABS safety caps：A1、A2...A9.
Shock absorbing capability survey is carried out to foamed aluminium core body safety cap P1~P4 and common ABS safety caps A1~A4 respectively
Examination, the change of record impact process shock point and real time data, draw its stress curve, and the peak of display recorded into following table
1。
The shock resistance data comparison of table 1
| Sequence number | Test condition | Specimen coding | Impulsive force Max (N) | Specimen coding | Impulsive force Max (N) |
| 1 | 50 DEG C of high temperature | P1 | 2549 | A1 | 3335 |
| 2 | - 10 DEG C of low temperature | P2 | 3037 | A2 | 3860 |
| 3 | 20 DEG C of immersion | P3 | 2725 | A3 | 2926 |
| 4 | Ultraviolet irradiates | P4 | 3796 | A4 | 4667 |
2) carrying out paracentesis resistance to foamed aluminium core body safety cap P5~P8 and common ABS safety caps A5~A8 respectively can survey
Examination, test data see the table below 2.
The paracentesis resistance energy data comparison of table 2
3) electrical insulation capability test is carried out to foamed aluminium core body safety cap P9 and common ABS safety caps A9 respectively, tests number
According to see the table below 3.
The electrical insulation capability data comparison of table 3
It can be seen that the properties of foamed aluminium core body safety cap are better than common ABS safety caps by data in table 1, especially
It is under high and low temperature environment, the buffering energy-absorbing effect of foamed aluminium core body safety cap is more obvious.When safety cap is by heavy impact,
The power that foamed aluminium core body safety cap is delivered to head mould is smaller, and stress curve is gentler, serves a good energy-absorbing damping effect
Fruit, avoid infringement of transient force during impact to human body head and neck so that safety coefficient is greatly improved.
Table 2 and table 3 embody the security performance and insulating properties of safety cap, avoid the broken generation of safety cap when being hit
Fragment human body is caused to damage.It is also seen that by data in table 3 when method 3 tests safety cap electrical insulation capability, foam
Aluminium is better than common ABS.Associated methods 2 and the test result analysis of method 3 show, the foamed aluminium core body in terms of electrical insulation capability
Helmet structure is better than the structure of common ABS safety caps so that safety cap gets a promotion in terms of antistatic performance, improves people
Safety coefficient during body safe wearing cap.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (8)
1. a kind of preparation method of electric power safety cap, it is characterized in that：Using machining mode to foamed aluminium middle core body
Carry out type body processing, obtain foamed aluminium helmet shell after drilling processing is carried out to it again, using foamed aluminium helmet shell as
Basic mould, processing is dried by the safe cap surface of foamed aluminium, and the composite for preparing resin-case is carried out into hot melt processing, made
It has the uniform surface coated in foamed aluminium helmet shell after certain mobility, while enters vacuum adsorbed, guarantor
Card resin is bonded with foamed aluminium helmet shell, and polishing grinding is carried out after solidification to be cooled, completes helmet structure main body
Prepare.
2. preparation method as claimed in claim 1, it is characterized in that：Resin-case uses resin type material, EPDM+PPS66, presses
Certain proportion is mixed, and proportion is 2:1-1:2.
3. preparation method as claimed in claim 1, it is characterized in that：Resin-case is mixed using polytetrafluoroethylene (PTFE) and silicone rubber
It is prepared, proportion 5:1-1:5.
4. preparation method as claimed in claim 1, it is characterized in that：The resin-case is mixed using fiberglass and 192 resins
It is prepared, proportion 5:1-1:5.
5. preparation method as claimed in claim 2, it is characterized in that：It is bonded using at least 3 pieces of 50-70mm foam aluminium plates
It is compound, using be bonded it is compound after block inclusion be processed as foamed aluminium safety cap matrix, build to the profile of safety cap biography
It is defeated that foamed aluminium safety cap is processed to CNC milling machine, milling first is carried out to the inner chamber of safety cap, then profile is processed.
6. preparation method as claimed in claim 1, it is characterized in that：Safety cap entirety wall thickness is controlled to be less than or equal in process
5mm。
7. preparation method as claimed in claim 1, it is characterized in that：The polishing grinding of safety cap is carried out after solidification to be cooled, is made
The coating layer thickness of safe cap surface is consistent.
8. a kind of helmet structure, it is characterized in that：It is prepared by any described method in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175226.5A CN107874348B (en) | 2017-11-22 | 2017-11-22 | Preparation method and structure of electric safety helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175226.5A CN107874348B (en) | 2017-11-22 | 2017-11-22 | Preparation method and structure of electric safety helmet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107874348A true CN107874348A (en) | 2018-04-06 |
| CN107874348B CN107874348B (en) | 2020-07-07 |
Family
ID=61778153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711175226.5A Active CN107874348B (en) | 2017-11-22 | 2017-11-22 | Preparation method and structure of electric safety helmet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107874348B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812731A (en) * | 2003-06-26 | 2006-08-02 | 秦内蒂克有限公司 | Safety helmets |
| CN102656418A (en) * | 2009-10-22 | 2012-09-05 | 霍尼韦尔国际公司 | Helmets comprising ceramic for protection against high energy fragments and rifle bullets |
| CN102942786A (en) * | 2012-10-24 | 2013-02-27 | 金发科技股份有限公司 | Nylon composition, preparation method and applications thereof |
| CN104720175A (en) * | 2015-04-13 | 2015-06-24 | 步向义 | Safety helmet with prompting and warning functions |
| DE102014013773A1 (en) * | 2014-09-17 | 2016-03-17 | Manfred Woschko | Aluminum foam objects |
| CN107080316A (en) * | 2017-06-08 | 2017-08-22 | 中国科学院长春应用化学研究所 | A kind of magnesium alloy helmet of use Honeycomb muscle |
-
2017
- 2017-11-22 CN CN201711175226.5A patent/CN107874348B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812731A (en) * | 2003-06-26 | 2006-08-02 | 秦内蒂克有限公司 | Safety helmets |
| CN102656418A (en) * | 2009-10-22 | 2012-09-05 | 霍尼韦尔国际公司 | Helmets comprising ceramic for protection against high energy fragments and rifle bullets |
| CN102942786A (en) * | 2012-10-24 | 2013-02-27 | 金发科技股份有限公司 | Nylon composition, preparation method and applications thereof |
| DE102014013773A1 (en) * | 2014-09-17 | 2016-03-17 | Manfred Woschko | Aluminum foam objects |
| CN104720175A (en) * | 2015-04-13 | 2015-06-24 | 步向义 | Safety helmet with prompting and warning functions |
| CN107080316A (en) * | 2017-06-08 | 2017-08-22 | 中国科学院长春应用化学研究所 | A kind of magnesium alloy helmet of use Honeycomb muscle |
Non-Patent Citations (3)
| Title |
|---|
| 任杰 等: "《氟复合材料应用技术》", 31 January 1997, 科学技术文献出版社 * |
| 杨鸣波 等: "《塑料成型工艺学 第3版》", 30 June 2014, 中国轻工业出版社 * |
| 肖亚庆 等: "《铝加工技术实用手册》", 31 January 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107874348B (en) | 2020-07-07 |
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