CN105610033A - Manufacturing method of novel conductive anticorrosion grounding module - Google Patents
Manufacturing method of novel conductive anticorrosion grounding module Download PDFInfo
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- CN105610033A CN105610033A CN201510668421.6A CN201510668421A CN105610033A CN 105610033 A CN105610033 A CN 105610033A CN 201510668421 A CN201510668421 A CN 201510668421A CN 105610033 A CN105610033 A CN 105610033A
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- grounding module
- preparation
- novel conductive
- conductive anti
- graphite
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention discloses a manufacturing method of a novel conductive anticorrosion grounding module. The method comprises the following steps of 1) using a high speed mixer to uniformly mix graphite, a high temperature resistance binder and a zinc powder so as to acquire a mixed powder; and 2) using a hot-press device to carry out compression molding on the mixed powder at a certain temperature and under certain pressure and then cooling in a furnace so that the module is obtained. In the invention, the graphite is taken as a main body conduction medium, a high temperature resistance material is taken as the binder, and simultaneously, the zinc powder is used as an auxiliary filling material so that an anticorrosion characteristic of the grounding module is increased and conductivity is not influenced at the same time. By using the manufacturing technology in the invention, needed equipment cost is low, operation is convenient and a manufacturing period is short; and a used raw material is green, environmental-protection and non-pollution. The method is suitable for industrialized mass production.
Description
Technical field
The present invention relates to a kind of preparation method of earthing module, refer to particularly a kind of preparation method of novel conductive anti-corrosion grounding module.
Background technology
Graphite has much good character, it is heat and electric good conductor on the one hand, its heat transfer property and electric conductivity and most metals are similar, on the other hand, it is also the super material of chemical industry, its chemical stability is very outstanding, and it is acidproof, alkaline-resisting, corrosion-resistant, has special status in chemical engineering industry. Meanwhile, it also has the characteristics such as plasticity, lubricity and the coefficient of expansion are little, is therefore widely used in each department of national economy, especially in electric power, metallurgy, machinery, electrical equipment, chemical engineering industry, is widely used.
Current earthing module, mainly adopt graphite as conductive material, cement as binding agent. Patent of invention CN103268988A adopts graphite, calcined coke, bentonite, rare earth, electroconductive cement etc. to prepare earthing module material, and this module has conduction and high-strength double grading concurrently. But this cement based earthing module, although compression strength is relatively high, because cement can produce heat in the process of solidifying, makes final inside modules produce hole, these holes become corrosive medium and enter the passage of electrode cores. For this situation, patent of invention CN203910986U has applied one deck conductive anti-corrosion coating on electrode cores surface. But coating general thickness is very thin, in the extraneous corrosion of opposing, also need to consider the stability of himself physical and chemical performance.
Study and make its research field that simultaneously meets conduction, anticorrosion two kinds of performances still for blank for earthing module material itself, be therefore badly in need of developing a kind of efficient, economic novel grounded module.
Summary of the invention
Object of the present invention will overcome the existing deficiency of prior art exactly, and a kind of preparation method of the novel conductive anti-corrosion grounding module that simultaneously possesses good electric conductivity and anti-corrosive properties is provided.
For achieving the above object, the preparation method of novel conductive anti-corrosion grounding module of the present invention, is characterized in that, comprises the following steps:
Step 1, first with homogenizer, graphite, high temperature resistant binder, zinc powder are mixed, obtain mixed-powder;
Step 2, adopt hot-press arrangement this mixed-powder is compressing with uniform temperature and certain pressure, cooling with stove after, can obtain novel conductive anti-corrosion grounding module.
In step 1 of the present invention, described graphite is selected from any one or the two or more combinations in compact crystal shape graphite, crystalline flake graphite, aphanitic graphite; Described high temperature resistant binder is the combination of any one or two kinds in inorganic oxide copper, inorganic silicone adhesive.
In step 1 of the present invention, the rotating speed of described high-speed stirred is 3000 ~ 5000r/min.
In step 1 of the present invention, the time of described high-speed stirred is 20min ~ 100min.
In step 1 of the present invention, the addition of described graphite is 60 ~ 80wt% of mixed-powder gross mass.
In step 1 of the present invention, the addition of described high temperature resistant binder is 10 ~ 20wt% of mixed-powder gross mass.
In step 1 of the present invention, the addition of described zinc powder is 10～20wt% of mixed-powder gross mass.
In step 2 of the present invention, described certain temperature is 300 ~ 400 DEG C.
In step 2 of the present invention, described certain pressure is 10 ~ 25MPa.
Beneficial effect of the present invention is:
1) use zinc as packing material, zinc is oxidized as anode on the one hand, and guard electrode core avoids being corroded, and the fusing point of zinc is lower on the other hand, easily reaches its semi-molten state at lower temperature;
2) select the binding agent of heat resisting temperature higher than zinc fusing point, can guarantee that binding agent can not lose efficacy because molecular structure is destroyed in the time using heat pressing process;
3) preparation technology's equipment needed thereby cost is lower, easy to operate, and manufacturing cycle is shorter; Be applicable to industrialized mass production.
Brief description of the drawings
Fig. 1 is the preparation flow figure of novel conductive anti-corrosion grounding module of the present invention;
Fig. 2 is the principle schematic of novel conductive anti-corrosion grounding module of the present invention.
Detailed description of the invention
In order to explain better the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but they do not form restriction to the present invention.
Embodiment 1
As shown in Figure 1, a kind of preparation method of novel conductive anti-corrosion grounding module:
1) 70g graphite, the inorganic silicone adhesive of 16g, 14g zinc powder are first stirred to 60min with homogenizer with the rotating speed of 4000r/min, three is mixed, obtain the mixed-powder that gross mass is 100g;
2) adopt hot-press arrangement that this mixed-powder is compressing under 380 DEG C, 18MPa, cooling with stove after, can obtain novel conductive anti-corrosion grounding module.
Embodiment 2
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the inorganic silicone adhesive in step 1 and the quality of zinc powder are respectively 20g and 10g.
Embodiment 3
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the inorganic silicone adhesive in step 1 and the quality of zinc powder are respectively 18g and 12g.
Embodiment 4
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the inorganic silicone adhesive in step 1 and the quality of zinc powder are respectively 14g and 16g.
Embodiment 5
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the mixing speed in step 1 is 3000r/min.
Embodiment 6
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the mixing speed in step 1 is 3500r/min.
Embodiment 7
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the mixing speed in step 1 is 4500r/min.
Embodiment 8
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing temperature in step 2 is 340 DEG C.
Embodiment 9
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing temperature in step 2 is 360 DEG C.
Embodiment 10
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing temperature in step 2 is 400 DEG C.
Embodiment 11
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing pressure in step 2 is 14MPa.
Embodiment 12
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing pressure in step 2 is 16MPa.
Embodiment 13
According to the step preparation of embodiment 1, be with the difference of embodiment 1, the hot pressing pressure in step 2 is 20MPa.
Decay resistance by the obtained novel conductive anti-corrosion grounding module of embodiment 1 ~ 13 is as shown in table 1.
Decay resistance and the electric conductivity of table 1 novel conductive anti-corrosion grounding module
| Sample | The resistance to 3.5%NaCl brine corrosion time (occurring corrosion) | Change in resistance rate |
| Do not add the module of zinc powder | 30 days | — |
| Embodiment 1 | Do not find corrosion | -3% |
| Embodiment 2 | 122 days | -1% |
| Embodiment 3 | 184 days | -2% |
| Embodiment 4 | Do not find corrosion | -4% |
| Embodiment 5 | 94 days | -3% |
| Embodiment 6 | 126 days | -2% |
| Embodiment 7 | There is not corrosion | -2% |
| Embodiment 8 | 123 days | -3% |
| Embodiment 9 | 187 days | -2% |
| Embodiment 10 | 68 days | -2% |
| Embodiment 11 | 126 days | -3% |
| Embodiment 12 | 219 days | -2% |
| Embodiment 13 | 63 days | -2% |
As can be seen from Table 1, promote larger by the obtained novel anticorrosion earthing module of embodiment 1 ~ 13 with respect to the traditional earthing module decay resistance that does not add zinc powder.
Using raw material quality proportioning, mixing speed, mixing time, hot pressing temperature, hot pressing pressure as variable, pass through contrast experiment respectively: when zinc powder addition is 16g in embodiment 1 ~ 4, continue to add zinc powder, corrosion does not all occur electrode cores; In embodiment 5,6,1,7, in the time that rotating speed reaches 4000r/min, continuing increases rotating speed, and corrosion does not all occur electrode cores; In embodiment 8,9,1,10, when hot pressing temperature reaches 380 DEG C, because the density of zinc is greater than graphite, continue rising temperature and can make zinc liquid sink and cause module not fine and close; Experiment 11,12,1,13 in, in the time that hot pressing pressure reaches 18MPa, continue increase pressure, can cause the layering of module and make antiseptic property decline. Therefore, can select formula in embodiment 1 as optimal procedure parameters.
Meanwhile, the resistivity of novel anticorrosion earthing pole decreases on the contrary with respect to traditional earthing module, and reason is that zinc not only serves as the effect of anti-corrosion material therein, but also has played the effect of having a common boundary conductive channel.
In sum, novel anticorrosion earthing module of the present invention is compared existing invention, in guaranteeing electric conductivity, can take into account good antiseptic property.
Claims (9)
1. a preparation method for novel conductive anti-corrosion grounding module, is characterized in that, comprises the following steps:
Step 1, first with homogenizer, graphite, high temperature resistant binder, zinc powder are mixed, obtain mixed-powder;
Step 2, adopt hot-press arrangement this mixed-powder is compressing with uniform temperature and certain pressure, cooling with stove after, can obtain novel conductive anti-corrosion grounding module.
2. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: described graphite is selected from any one or the two or more combinations in compact crystal shape graphite, crystalline flake graphite, aphanitic graphite; Described high temperature resistant binder is the combination of any one or two kinds in inorganic oxide copper, electrodeless silicone adhesive.
3. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 1, the rotating speed of high-speed stirred is 3000 ~ 5000r/min.
4. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 1, the time of high-speed stirred is 30min ~ 90min.
5. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 1, the addition of described graphite is 60 ~ 80wt% of mixed-powder gross mass.
6. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 1, the addition of described high temperature resistant binder is 10 ~ 20wt% of mixed-powder gross mass.
7. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 1, the addition of described zinc powder is 10～20wt% of mixed-powder gross mass.
8. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 2, described uniform temperature is 300 ~ 400 DEG C.
9. the preparation method of novel conductive anti-corrosion grounding module according to claim 1, is characterized in that: in step 2, described certain pressure is 10 ~ 20MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510668421.6A CN105610033A (en) | 2015-10-17 | 2015-10-17 | Manufacturing method of novel conductive anticorrosion grounding module |
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| CN201510668421.6A CN105610033A (en) | 2015-10-17 | 2015-10-17 | Manufacturing method of novel conductive anticorrosion grounding module |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100907699B1 (en) * | 2008-09-23 | 2009-07-14 | 박종수 | Ground plate |
| CN101552385A (en) * | 2009-05-13 | 2009-10-07 | 北京林业大学 | Graphite aluminum-magnesium alloy grounding material and preparing method thereof |
| CN102074807A (en) * | 2010-12-20 | 2011-05-25 | 西安优耐达电力技术有限公司 | Composite grounding unit |
| CN203134992U (en) * | 2013-01-09 | 2013-08-14 | 张立涛 | Long-acting nonmetal earthing device |
| WO2014001852A1 (en) * | 2012-06-26 | 2014-01-03 | Humberto Arenas Barragan | Energy‑storage active earthing system |
-
2015
- 2015-10-17 CN CN201510668421.6A patent/CN105610033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100907699B1 (en) * | 2008-09-23 | 2009-07-14 | 박종수 | Ground plate |
| CN101552385A (en) * | 2009-05-13 | 2009-10-07 | 北京林业大学 | Graphite aluminum-magnesium alloy grounding material and preparing method thereof |
| CN102074807A (en) * | 2010-12-20 | 2011-05-25 | 西安优耐达电力技术有限公司 | Composite grounding unit |
| WO2014001852A1 (en) * | 2012-06-26 | 2014-01-03 | Humberto Arenas Barragan | Energy‑storage active earthing system |
| CN203134992U (en) * | 2013-01-09 | 2013-08-14 | 张立涛 | Long-acting nonmetal earthing device |
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Application publication date: 20160525 |