CN103978704B - Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics - Google Patents
Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics Download PDFInfo
- Publication number
- CN103978704B CN103978704B CN201410195753.2A CN201410195753A CN103978704B CN 103978704 B CN103978704 B CN 103978704B CN 201410195753 A CN201410195753 A CN 201410195753A CN 103978704 B CN103978704 B CN 103978704B
- Authority
- CN
- China
- Prior art keywords
- engineering plastics
- temperature
- incubated
- hour
- deep cooling
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229920006351 engineering plastic Polymers 0.000 title claims abstract description 16
- 230000002708 enhancing effect Effects 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 238000010792 warming Methods 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 238000002635 electroconvulsive therapy Methods 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a continuous sub-zero treatment process for enhancing hardness and wear resistant property of high polymers like engineering plastics. The process employs continuous cooling and tempering technology and equipment to conduct ultra-low temperature subzero treatment on engineering plastic parts at - 150 to -190 DEG C, and several times of low temperature hot and cold shock treatment is carried out. The method can greatly improve the strength and wear resistance of such parts and expand the application of the part as a novel wear-resistant material.
Description
Technical field
The present invention relates to a kind of continuity cryogenic treatment process improving engineering plastics hardness and anti-wear performance.
Background technology
Engineering plastics, the such as high molecular polymer such as polyurethane, it has good lubricity, is progressively replacing traditional
Metal wear resistant material and be widely used in machinery industry, but its hardness and wearability tend not to reach use requirement,
Thus be subject to certain restrictions in further genralrlization uses.
Cryogenics, especially in the ultra-deep refrigeration technique less than less than 100 DEG C, for improving the physical of high molecular polymer
It has been provided that new PROCESS FOR TREATMENT approach.At present it is believed that the molecule of high molecular polymer can recurring structure under ultra-deep cool condition
Lax, but during rising again thereafter, intermolecular can be formed more by being mutually paired under lowest energy principle
Orderly and close structure, so that a raising of its wearability.However, because high molecular polymer molecular structure is chaotic, point
The son restructuring long-time K cryogenic treatment of improper needs is and it needs to could preferably realize through repetitious temperature shock.
At present, the test method providing both at home and abroad is all confined to disposable deep cooling, without in view of temperature shock to poly-
Compound internal structure and the importance of performance change, thus the effect to high molecular polymer for the cryogenics can not be given full play to.
Content of the invention
The invention aims to overcoming the shortcomings of above, provide a kind of engineering plastics hardness and anti-wear performance of improving
Continuity cryogenic treatment process.
The purpose of the present invention is achieved through the following technical solutions: a kind of company improving engineering plastics hardness and anti-wear performance
Continuous property cryogenic treatment process, comprises the following steps:
A, the parts making engineering plastics are placed in the deep cooling box of full-automatic numerical control deep freeze refrigeration plant, in numerical control program control
Under system, it is cooled to -150--190 DEG C with the speed of 0.2-10 DEG C/min, be incubated 1-5 hour；
B, afterwards the temperature of deep cooling box is tentatively warming up to -80--120 DEG C, is incubated 1-5 hour；
C, afterwards the temperature of deep cooling box is cooled to 150--190 DEG C again, is incubated 1-5 hour；
D, again the temperature of deep cooling box is tentatively warming up to -80--120 DEG C afterwards, is incubated 1-5 hour；
E, repeat step c and step d afterwards, repeat 1-5 time；
After f, low-temperature insulation terminate, under numerical control program control, the temperature in deep cooling box is with the intensification of 0.2-10 DEG C/min
Speed is progressively risen again to being warming up to 80-100 DEG C, and is incubated 2-4 hour.
The present invention compared with prior art has the advantage that
This method adopts a kind of low-temperature space, that is, between -100 DEG C to -200 DEG C, carries out multiple temperature to by deep cooling material
Impact, is internally formed certain " molecule concussion " in high molecular polymer, promotes the more preferable lotus root of intermolecular formation and reaches and pass through
Deep cooling strengthens that it is wear-resisting, fatigue durability and improve its service life.
Brief description:
Fig. 1 is the temperature profile of the present invention.
Specific embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, does not constitute limiting the scope of the present invention.
A kind of one kind of the continuity cryogenic treatment process improving engineering plastics hardness and anti-wear performance of the present invention is specifically real
Apply mode, comprise the following steps:
A, the parts making engineering plastics are placed in the deep cooling box of full-automatic numerical control deep freeze refrigeration plant, in numerical control program control
Under system, it is cooled to -150--190 DEG C with the speed of 0.2-10 DEG C/min, be incubated 1-5 hour；
B, afterwards the temperature of deep cooling box is tentatively warming up to -80--120 DEG C, is incubated 1-5 hour；
C, afterwards the temperature of deep cooling box is cooled to 150--190 DEG C again, is incubated 1-5 hour；
D, again the temperature of deep cooling box is tentatively warming up to -80--120 DEG C afterwards, is incubated 1-5 hour；
E, repeat step c and step d afterwards, repeat 1-5 time；
After f, low-temperature insulation terminate, under numerical control program control, the temperature in deep cooling box is with the intensification of 0.2-10 DEG C/min
Speed is progressively risen again to being warming up to 80-100 DEG C, and is incubated 2-4 hour.
Embodiment 1
A, polyurethane parts are placed in the deep cooling box of full-automatic numerical control deep freeze refrigeration plant, under numerical control program control, with
The speed of 0.2-10 DEG C/min is cooled to -150--190 DEG C, is incubated 1-5 hour；
B, afterwards the temperature of deep cooling box is tentatively warming up to -80--120 DEG C, is incubated 1-5 hour；
C, afterwards the temperature of deep cooling box is cooled to -150--190 DEG C again, is incubated 1-5 hour；
D, again the temperature of deep cooling box is tentatively warming up to -80--120 DEG C afterwards, is incubated 1-5 hour；
E, afterwards the temperature of deep cooling box is cooled to -150--190 DEG C again, is incubated 1-5 hour；
F, again the temperature of deep cooling box is tentatively warming up to -80--120 DEG C afterwards, is incubated 1-5 hour；
G, afterwards the temperature of deep cooling box is cooled to -150--190 DEG C again, is incubated 1-5 hour；
After h, low-temperature insulation terminate, under numerical control program control, the temperature in deep cooling box is with the intensification of 0.2-10 DEG C/min
Speed is progressively risen again to being warming up to 80-100 DEG C, and is incubated 2-4 hour.
Result after process is as follows:
| Test event | Non- deep cooling test block | Deep cooling test block | Execution standard |
| Tensile strength | 25.95 mpa | 33.45 mpa | gb/t518-2009 |
| Elongation at break | 406% | 327% | gb528-2009 |
| Tearing strength | 45.5kn/m | 57.8kn/m | gb/t529-2008 |
| Peel strength | 2.5 kn/m | 1.9kn/m | gb/t 7760-2003 |
| Shore a intensity | 77 | 90 | gb/t531.1-2008 |
| Akron abrasion | 0.032 cm3/1.61km | 0.022cm3/1.61km | hg/t2073-2005 |
High polymer molecule can relax under ultralow temperature, and during temperature shock repeatedly, molecule can be according to minimum
Rule reconfiguring, causing more close structure, thus increasing its hardness and wearability；The engineering being processed by the method
The parts that plastics are made, situations such as there is not change in size, can directly use.
This method adopts a kind of low-temperature space, that is, between -100 DEG C to -200 DEG C, carries out multiple temperature to by deep cooling material
Impact, is internally formed certain " molecule concussion " in high molecular polymer, promotes the more preferable lotus root of intermolecular formation and reaches and pass through
Deep cooling strengthens that it is wear-resisting, fatigue durability and improve its service life.
Claims (3)
1. a kind of continuity cryogenic treatment process improving engineering plastics hardness and anti-wear performance it is characterised in that: include following
Step:
A, the parts making engineering plastics are placed in the deep cooling box of full-automatic numerical control deep freeze refrigeration plant, in numerical control program control
Under, it is cooled to -150--190 DEG C with the speed of 0.2-10 DEG C/min, be incubated 1-5 hour；
B, afterwards the temperature of deep cooling box is tentatively warming up to -80--120 DEG C, is incubated 1-5 hour；
C, afterwards the temperature of deep cooling box is cooled to -150--190 DEG C again, is incubated 1-5 hour；
D, again the temperature of deep cooling box is tentatively warming up to -80--120 DEG C afterwards, is incubated 1-5 hour；
E, repeat step c and step d afterwards, repeat 1-5 time；
After f, low-temperature insulation terminate, under numerical control program control, the temperature in deep cooling box is with the programming rate of 0.2-10 DEG C/min
Progressively rise again to 80-100 DEG C, and be incubated 2-4 hour.
2. a kind of continuity cryogenic treatment process improving engineering plastics hardness and anti-wear performance according to claim 1, its
It is characterised by: described engineering plastics are polyurethane.
3. a kind of continuity cryogenic treatment process improving engineering plastics hardness and anti-wear performance according to claim 1, its
It is characterised by: step c and step d are repeated 2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410195753.2A CN103978704B (en) | 2014-05-12 | 2014-05-12 | Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410195753.2A CN103978704B (en) | 2014-05-12 | 2014-05-12 | Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103978704A CN103978704A (en) | 2014-08-13 |
| CN103978704B true CN103978704B (en) | 2017-01-25 |
Family
ID=51270986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410195753.2A Active CN103978704B (en) | 2014-05-12 | 2014-05-12 | Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103978704B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228090B (en) * | 2014-09-15 | 2017-02-01 | 东华大学 | Method for modifying aramid fiber composite by subzero treatment |
| CN105690812B (en) * | 2016-03-16 | 2019-06-21 | 中国科学院理化技术研究所 | A kind of online deep cooling reforming apparatus of high molecular material injection-moulding device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032073A (en) * | 1987-07-27 | 1989-03-29 | 低温学国际公司 | A kind of apparatus and method that are used for multiple material is carried out sub-zero treatment |
| US5447035A (en) * | 1993-04-19 | 1995-09-05 | Leading Edge, Incorporated | Method of treating brake pads |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4562320B2 (en) * | 2001-06-29 | 2010-10-13 | 株式会社吉野工業所 | Fast whitening method for synthetic resin containers |
| US7297418B2 (en) * | 2003-06-24 | 2007-11-20 | Daniel Watson | Thermally treated carbide material |
-
2014
- 2014-05-12 CN CN201410195753.2A patent/CN103978704B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032073A (en) * | 1987-07-27 | 1989-03-29 | 低温学国际公司 | A kind of apparatus and method that are used for multiple material is carried out sub-zero treatment |
| US5447035A (en) * | 1993-04-19 | 1995-09-05 | Leading Edge, Incorporated | Method of treating brake pads |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103978704A (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392124B (en) | Heat treatment technology method for improving obdurability of high-speed steel | |
| CN103978704B (en) | Continuous sub-zero treatment process for enhancing hardness and wear resistant property of engineering plastics | |
| CN109280271B (en) | Heat-insulating wear-resistant polypropylene composite material pipeline for oil pipe lining and manufacturing method thereof | |
| CN101012325A (en) | Superhigh molecular weight polythene modified material and its preparing method and use | |
| CN102977418A (en) | Giant engineering machinery radial tire tread rubber composite used for mines | |
| CN107286693A (en) | A kind of graphene modified resin/fibrous composite and preparation method thereof | |
| CN105925771A (en) | Quenching medium and quenching method for steel cord | |
| CN105586565A (en) | Carbonitriding thermal treatment process for strengthening wear resistance of bearing ring | |
| CN107298870A (en) | A kind of graphene oxide modified resin/fibrous composite and preparation method thereof | |
| CN106401686A (en) | Enhanced engine valve and manufacturing process thereof | |
| CN105219945A (en) | A kind of wireline high-carbon carbon steel wire heat treating method | |
| CN102719651A (en) | Rapid induction heating and air cooling heat treatment process for steel wire | |
| CN205244134U (en) | Carburizing austempering heat treatment slider for linear slide rail | |
| CN102514199A (en) | Method for producing automobile steel plate spring noise reduction piece | |
| CN207405201U (en) | A kind of mould steel quenching ancillary equipment for swinging concussion | |
| CN104525673A (en) | Warm drawing process of 304 stainless steel drawn workpiece | |
| CN104152638A (en) | Micro-deformation quenching heat treatment process of cold work die steel thin workpiece | |
| CN201530116U (en) | Oil cooling system of machine for extruding ultra-high molecular weight polyethylene (UHMWPE) high abrasion-resistant pipes | |
| CN101983787A (en) | Preparation method of low-strength low-hardness steel wire | |
| CN104178607A (en) | Industrial sewing machine oil circuit connecting member and heat treatment process thereof | |
| CN104046751B (en) | The heat-treatment technology method of Cr12MoV automobile booster sealing rings | |
| CN104195762A (en) | Oilway joint of industrial sewing machine and thermal treatment technique of oilway joint | |
| CN106079190B (en) | A kind of all-steel radial tire sulfuration process | |
| CN104266016A (en) | Oil pipe joint of numerical control lathe and thermal treatment process thereof | |
| CN104195763A (en) | Presser foot fixing part of industrial sewing machine and thermal treatment technique of presser foot fixing part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220118 Address after: 226000 floor 2, block C, No. 128, Changtai Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong Tianding Information Consulting Co.,Ltd. Address before: 226000 room 206, block C, No. 128, Changtai Road, Gangzha District, Nantong City, Jiangsu Province Patentee before: NANTONG CRYOTHERM TIANGONG CO.,LTD. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20240520 Address after: 226000 floor 2, block C, No. 128, Changtai Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong Tianhan Cryogenic Technology Co.,Ltd. Country or region after: China Address before: 226000 floor 2, block C, No. 128, Changtai Road, Chongchuan District, Nantong City, Jiangsu Province Patentee before: Nantong Tianding Information Consulting Co.,Ltd. Country or region before: China |