CN1048526C - Low-carbon alloy steel nail for nailingun cement and jet nail and making method - Google Patents
Low-carbon alloy steel nail for nailingun cement and jet nail and making method Download PDFInfo
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- CN1048526C CN1048526C CN 94110312 CN94110312A CN1048526C CN 1048526 C CN1048526 C CN 1048526C CN 94110312 CN94110312 CN 94110312 CN 94110312 A CN94110312 A CN 94110312A CN 1048526 C CN1048526 C CN 1048526C
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 239000004568 cement Substances 0.000 title claims abstract description 30
- 229910001339 C alloy Inorganic materials 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 229910000655 Killed steel Inorganic materials 0.000 claims abstract description 17
- 238000005256 carbonitriding Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005554 pickling Methods 0.000 claims abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000004571 lime Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 15
- 238000005491 wire drawing Methods 0.000 claims description 10
- 238000005255 carburizing Methods 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 abstract description 13
- 230000000171 quenching effect Effects 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000001035 drying Methods 0.000 abstract description 5
- 238000004381 surface treatment Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 11
- 239000010962 carbon steel Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 7
- 238000000137 annealing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000003672 processing method Methods 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- 238000005496 tempering Methods 0.000 description 5
- 238000003763 carbonization Methods 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 229910000677 High-carbon steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention relates to a low-carbon alloy steel cement nail or a jet nail and the technical skill for manufacturing the nail. The present invention adopts killed steel in low-carbon steel or adopts special killed steel wire as raw material, a cement nail shape or a jet nail shape is made by pickling for rust removal, cleaning by water, sticking white lime, drying and drawing, and then, the present invention carries out gas carburization or carbonitriding, moderate temperature quenching, low temperature temper and surface treatment in a net ribbon quenching furnace. Preheating temperature in the furnace is 860 DEG C, carburization or carbonitriding temperature is 870 DEG C to 900 DEG C, 0.90% to 1.05% of carbon potential is adopted, and time is 45 minutes to 1 hour and 15 minutes; low temperature temper is at 150 DEG C to 180 DEG C, and the time is 45 minutes to 1 hour. The grain size of products is ensured at 5 to 6 grades, indexes of the intensity and the toughness of the products are enhanced, product quality exists in stable state, and the present invention has the advantages of low manufacturing cost, good technology and small dispersion of quality parameters.
Description
The present invention relates to a kind of manufacture method of cement nail or nailing of soft steel, belongs to producing the Technology that this kind nail is made, and this kind nail is used for the building decoration field.
The production technique of low-carbon alloy steel cement or nailing is to select for use the soft steel wire rod to do starting material, mainly adopts carburizing and carbonitriding technology to produce the Technology of low-carbon alloy steel cement nail or nailing.Cement and lime front cover that this low-carbon alloy steel cement nail or nailing can pass the brick structure wall safely and reliably hammer in the brick, and perhaps fixedly article and finishing are used on the following mortar cement surface of 200 labels.
At present, the processing method that production cement nail and nailing are widely adopted is to select medium carbon steel wire rod or carbon steel wire rod with high for use, clean, be stained with ash drying, wire drawing to suitable size through mechanical rust removal, pickling, water again after cleaning, be stained with ash drying, wire drawing, annealing through mechanical rust removal, pickling, water, through after system nail, middle temperature quenching, low-temperaturetempering, the surface treatment, make cement nail or nailing again.Above-mentioned processing method exists following shortcoming and defect: the cost height, medium carbon steel and carbon steel wire rod with high price per ton is higher than 1000 yuan in soft steel wire rod.Manufacturability is bad, and the production cycle is long, because the cold working hardening of metallic substance, medium carbon steel and carbon steel wire rod with high must be annealed in wire-drawing process, and annealing expense at every turn is more than 500 yuan/ton; Because annealing, wire rod must be carried out mechanical rust removal, pickling, water cleaning again, is stained with the ash drying, could continue wire drawing.So both increased the wire rod loss, increased the annealing expense, improved cost, extended the production cycle again.In process of production, more serious because medium carbon steel and carbon steel wire rod with high intensity are strong and hardness is higher to production unit (drawing wire machine and nail machine) damage intensity, also increased working strength of workers.Because medium carbon steel and carbon steel wire rod with high elasticity are better, in system nail operation, nail bar alignment difficulty increases product knee rate height.Owing to there is annealing operation, exist the uneven phenomenon of annealing, cause system to follow closely not arrisdefect easily or follow closely sharp raw edge, take out point and head of a nail rimose shortcoming.
In " the producing the processing method of cement nail and nailing with soft steel " of the disclosed CN106854A as Patent Office of the People's Republic of China on January 20th, 1993 " patent of invention bulletin " in the disclosed processing method, exist following shortcoming again: say in the literary composition: " characteristics of this technology are that to have selected the soft steel wire rod for use be starting material; its material is to comprise homemade Class A general carbon steel; Class B general carbon steel and highquality carbon steel, the carbon content in its steel be lower than 0.25% 10; 15; 20; 25,15Mn, material composition and the identical or close material of above-mentioned homemade wire material in the soft steel wire rod of the trades mark such as 20Mn/25Mn and the import wire rod." above-mentioned selection method only stipulated to select for use carbon content to be lower than the material composition of 0.25% soft steel wire rod, and do not mention soft steel different two kinds of different soft steel, i.e. killed steel and rimming steels of forming of deoxidation material owing to smelting.Killed steel generally is the inherent fine grain steel through aluminium deoxidation, rimming steel generally is the essential coarse-grained steel through the deoxidation of manganese silicon, in case having selected low-carbon (LC) rimming steel wire rod for use is the soft steel cement nail or the nailing of raw material production, when middle temperature carburizing or carbonitriding, temperature surpasses 700 ℃ material grains degree rank will enter 4 grades, temperature during near 900 ℃ grain size number reached 1 grade, because of grain fineness number too thick, the intensity of product and toughness reduce greatly and become waste product, and scrap rate can reach 100%.The salient features of waste product shows as, and when normal the use, one beats, and the head of a nail, nail bar rupture immediately even pulverize, and completely lose use value.
Shortcoming and defect in view of above-mentioned prior art, the invention provides and a kind ofly can guarantee quality product, do not go out waste product, the cement nail or the nailing of the low-carbon (LC) converted steel that can further reduce cost again or the steel alloy material of low-carbon (LC) carbonitriding and make the Technology of this kind nail.
The objective of the invention is to be achieved through the following technical solutions:
In the soft steel wire rod, select the low-carbon (LC) highquality carbon steel for use, low-carbon (LC) killed steel in the structural carbon steel and the special killed steel of low-carbon (LC), clean, be stained with lime, drying, wire drawing, make cement nail and nailing shape through mechanical rust removal, pickling, water, carry out gas cementation or carbonitriding, the quenching of middle temperature, low-temperaturetempering again, surface treatment, in this technology, it is characterized in that when selecting for use the soft steel wire rod to do starting material, selecting killed steel or special killed steel for use.
Another characteristics of the present invention are after system nail operation is finished, in net belt type continuous carbonization quenching furnance, to carry out gas cementation or carbonitriding under the protective atmosphere.Preheating temperature in the stove is 860 ℃, and the temperature of gas cementation or carbonitriding is 870-900 ℃, and diffusion temperature is 880 ℃, precooling temperature before quenching is 845 ℃ to 850 ℃, adopt the carbon potential of 0.90%-1.05%, the time is 45 minutes to 1 hour 15 minutes, oil quenching.Low tempering temperatures is controlled at 150 ℃ to 180 ℃, and the time is 45 minutes to 1 hour.
Whole technical process of the present invention is the low-carbon (LC) killed steel wire material, after process mechanical rust removal on the scraping machine, soaked 13 minutes to 20 minutes in the sulphuric acid soln of input 3%-5%, clean with flushing with clean water then, again wire rod is put into temperature and be in 80 ℃-90 ℃ pulp-waters that contain calcium oxide 48%-52% and soak after 10 minutes to 12 minutes, take out airing.Enter wire-drawing process again.When the wire extension rate at 25%-27%, when shrinking percentage is 50%-55%, the wortle of wire-drawing process arrange reference value such as following table:
| Passage is arranged 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| Wortle 57 | 50 | 45 | 41 | 37 | 34 | 31 | 28 | 25 | 22 | 20 | 13 | 16 | 14 |
Drawing good finished product wire rod, on homemade Z94 series nail machine, carry out routine system cement nail type and the production of nailing type.
The nail of producing, in net belt type continuous carbonization quenching furnance, carry out carburizing or carbonitriding under the aeration type controlled atmosphere, infiltration layer is controlled at 0.0035-0.0045 times of nail nominal diameter, and carbon-potential control is between 0.90%-1.05%.After the quench treatment, carry out low-temperaturetempering again and handle.Concrete thermal treatment process is in net belt type continuous carbonization quenching furnance, giving hot temperature is 860 ℃, carburizing or carbonitriding temperature are 870 ℃ to 900 ℃, carbon potential is between the 0.9-1.05%, diffusion temperature is 880 ℃, precooling temperature before quenching is 845 ℃ to 850 ℃, and the time that workpiece passes through is 45 minutes to 1 hour 15 minutes, oil quenching.Low tempering temperatures is controlled between 150 ℃ to 180 ℃, and workpiece is 45 minutes to 1 hour by the time.
The present invention compared with prior art, because it is clear and definite in the soft steel wire rod, has only the inherent fine grain steel, especially highlighted killed steel and the special killed steel in the structural carbon steel, just can be used as the starting material of making cement nail and nailing, avoided generation because of the batch waste product that produces with essential coarse-grained steel (rimming steel), become a key problem in technology of the present invention, again because the system of new thermal treatment process nail, the grain fineness number of having guaranteed product is 5, more than 6 grades, improved the intensity index and the toughness index of product, made quality product be in good and stable status.
Because the proposition of the above-mentioned binomial key problem in technology of the present invention, the processing method of producing cement nail and nailing with soft steel is just thoroughly perfect.Just make soft steel wire rod and medium and high carbon steel wire rod price differential per ton 800 yuan-1000 yuan, do starting material, become the reduction volume of cement nail and nailing production cost effectively because of selecting the calm wire rod of low-carbon (LC) for use; Just make in the wire drawer operation and need not anneal, per tonly reduce cost 500 yuan again; Drawing wire machine and nail machine spoilage are reduced, reduced maintenance and maintenance cost; Just make the drawing process of soft steel wire rod good, finedraw is easy to advantage and is embodied; Labor strength is reduced; The characteristics that just make soft steel plasticity-be better than medium and high carbon steel are embodied in the raising of product appearance quality: nail knee rate reduces, and that has eliminated the nail point takes out the heart and raw edge, and the head of a nail does not ftracture.
Converted steel and carbonitrided steel belong to low-carbon alloy steel together.Since selecting for use of above-mentioned low-carbon (LC) killed steel material, the rationally feasible carburizing and the formulation of carbonitriding technology, and the production technique of this low-carbon alloy steel cement nail and nailing just becomes practical technique.
Fig. 1 is a process flow sheet of the present invention.
Fig. 2 is killed steel of the present invention and rimming steel material Heating temperature and grain size number graph of a relation.
Fig. 3 is carburizing of the present invention or carbonitriding thermal treatment process figure and low-temperature tempering heat treatment artwork.
Below in conjunction with accompanying drawing the present invention being made specific embodiment describes.
As shown in Figure 2, the Heating temperature of killed steel wire material and rimming steel wire rod and the relation curve of steel grain size number have been provided.
Accompanying drawing 3 can also further be found out in that to select for use soft steel to produce in the processing method of cement nail and nailing given at 900 ℃ of-960 ℃ of temperature drifts that carry out gas cementation, because under this temperature, the grain size number of killed steel is near 4 grades or above 4 grades, the intensity of product and loss in toughness are also very big, and the quality of product has reduced widely.
1 technical process in conjunction with the accompanying drawings:
Embodiment 1:
Produce trade mark C1018 wire rod with Taiwan, the material composition is as follows:
C：0.19％ Mn：0.71％ P：0.02％
S：0.015％ S：0.3％
Technological process is as follows:
After mechanical rust removal, in 4% sulphuric acid soln, soaked 15 minutes, clean with flushing with clean water, then wire rod being dropped into calcium oxide content is 48%, and temperature is to soak 10 minutes in 90 ℃ the water slurry, begin wire drawing behind the airing, wire drawing continuously on D5C * 5 drawing wire machinees, each road wortle coupling is as follows: Φ 5.7. Φ 5.0. Φ 4.5. Φ 4.1 Φ 3.7, finished silk Φ 3.7 are system nail wire rod, on the Z94-4 automatic nail making machine, produce 60 * 3.7 cement nail types.The gas carbonitriding of carrying out on net belt type continuous carbonization quenching furnance then under the protective atmosphere is quenched.Processing parameter is as follows: each distinguishes temperature: give 860 ℃ of hot-zones, 880 ℃ of carbonitridings, 850 ℃ of pre-cooling zones, carbon potential 0.90%, 50 minutes time; On the continuous tempering stove of net belt type, carry out temper then, 180 ℃ of tempering temperatures, 40 minutes time, after electroplating, cement nail production finishes.
Surface hardness: HRC:58-62
Centre hardness: HRC:29-84
Tensile strength: b:1300-1600MPa
Grain size number: 6 grades
Metallographic: surface: tiny, tempered martensite.
Heart portion: low carbon martensite
Adopt Shoudu Iron and Steel Co to produce the Q235A wire rod, the material composition is as follows:
C：0.18％、Mn：0.51％、P：0.019％、S：0.01％、Si：0.1％。
Adopt as embodiment 1 identical technological process and copy nailing nail type, beat with the ail gun examination, compare with imitative domestic certain best brand of product of quilt, performance mutually seemingly.
Adopt the starting material of embodiment 2, adopt identical technology, produce cement nail, product quality parameters is as follows:
Surface hardness: HRC:56-60
Centre hardness: HRC:32-35
Tensile strength: b:1300-1700MPa
Grain size number: 6 grades
Metallographic: surface: martensite+carbide
Heart portion: low-carbon lath martensite
Claims (3)
1, the manufacture method of low-carbon alloy steel cement or nailing, comprise with the soft steel wire rod through rust cleaning, pickling, water cleans, be stained with lime, dry, wire drawing, make the shape of cement nail or nailing, pass through gas cementation or carbonitriding again, and then middle temperature is quenched, low-temperaturetempering, the surface-treated operation, it is characterized in that the raw-material carbon content of selecting is low-carbon (LC) killed steel wire material or the special killed steel wire material of low-carbon (LC) below 0.25%, after the shape of making cement nail or nailing, to be put into and carry out carburizing or carbonitriding in the carburizing glowing furnace, the temperature of preheating is 860 ℃ in the stove, the temperature of carburizing or carbonitriding is 870 ℃～900 ℃, diffusion temperature is 880 ℃, carbon potential is 45 minutes 0.90%～1.05% time～1 hours 15 minutes, precooling temperature before middle temperature is quenched is 845 ℃～850 ℃, temperature is 150 ℃～180 ℃ during low-temperaturetempering, and the time is 45 minutes～1.1 hours.
2, method according to claim 1, the grain fineness number that it is characterized in that cement nail or nailing are 5～6 grades.
3, method according to claim 1, the cementation zone of cement nail or nailing are controlled at 0.0035～0.0045 times of nominal diameter of nail, and the carbon content on nail top layer should be controlled between 0.9%～1.05%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110312 CN1048526C (en) | 1994-06-09 | 1994-06-09 | Low-carbon alloy steel nail for nailingun cement and jet nail and making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110312 CN1048526C (en) | 1994-06-09 | 1994-06-09 | Low-carbon alloy steel nail for nailingun cement and jet nail and making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099806A CN1099806A (en) | 1995-03-08 |
| CN1048526C true CN1048526C (en) | 2000-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110312 Expired - Fee Related CN1048526C (en) | 1994-06-09 | 1994-06-09 | Low-carbon alloy steel nail for nailingun cement and jet nail and making method |
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| CN (1) | CN1048526C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324151C (en) * | 2004-04-27 | 2007-07-04 | 东华大学 | Guipure furnace knitting needle brightness quench technics parameter determining method |
| CN103184318B (en) * | 2011-12-29 | 2015-05-27 | 云南西仪工业股份有限公司 | Carbon restoration quenching treatment method for decarburized connecting rod forgings |
| EP2886668B1 (en) | 2013-12-19 | 2018-12-12 | Groz-Beckert KG | Textile tool and manufacturing method for the same |
| CN103924248A (en) * | 2014-04-24 | 2014-07-16 | 鑫光热处理工业(昆山)有限公司 | Carbonitriding quenching process for car seat adjuster component |
| CN105506647A (en) * | 2015-12-29 | 2016-04-20 | 东莞市科力钢铁线材有限公司 | Heat treatment production process of super-tough low-carbon steel screws |
| CN112453098A (en) * | 2020-11-05 | 2021-03-09 | 王太平 | Stainless steel wire deep punching technological process |
| CN113926962B (en) * | 2021-10-13 | 2024-07-02 | 宿迁弘益工贸有限公司 | Production method of high-strength cement nails |
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1994
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| Publication number | Publication date |
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| CN1099806A (en) | 1995-03-08 |
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