JPH0121874B2 - - Google Patents
Info
- Publication number
- JPH0121874B2 JPH0121874B2 JP22560985A JP22560985A JPH0121874B2 JP H0121874 B2 JPH0121874 B2 JP H0121874B2 JP 22560985 A JP22560985 A JP 22560985A JP 22560985 A JP22560985 A JP 22560985A JP H0121874 B2 JPH0121874 B2 JP H0121874B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- blade
- hardened
- base material
- hardened layer
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 49
- 239000000843 powder Substances 0.000 claims description 34
- 210000000078 claw Anatomy 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005242 forging Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910033181 TiB2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910007948 ZrB2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Soil Working Implements (AREA)
- Powder Metallurgy (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は耕耘爪及びその製造法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a tiller and a method for manufacturing the same.
（従来の技術）
従来耕耘爪は、土壌を耕耘する際の衝撃や摩耗
に対する耐久性を考慮し、SUP６やSUP４等の
鋼材が使用され、さらに、その刃縁部は熱処理に
よる硬化により耐摩耗性の向上が図られている。(Conventional technology) Conventional tilling claws are made of steel materials such as SUP6 and SUP4 in consideration of their durability against impact and abrasion when tilling the soil, and the blade edges are hardened by heat treatment to provide wear resistance. Improvements are being made.
（発明が解決しようとする課題）
従来のような、耕耘爪の刃縁部に熱処理により
形成される硬化層の厚さは、精々0.3〜0.5mm程度
であり、土壌耕耘という苛酷な条件下では急速に
摩耗し、短期間で廃棄され不経済なものであつ
た。(Problems to be Solved by the Invention) The thickness of the hardened layer formed by heat treatment on the blade edge of tilling claws as in the past is approximately 0.3 to 0.5 mm at most, and under the harsh conditions of soil tillage. They were uneconomical because they wore out rapidly and were discarded after a short period of time.
そこで、耕耘爪全体を耐摩耗性金合金材で形成
することが考えられるが、安価な鋼材に比べ製造
コストが嵩むため現実には使用されない。 Therefore, it is conceivable to make the entire tiller claw of a wear-resistant gold alloy material, but this is not actually used because the manufacturing cost is higher than that of inexpensive steel material.
本発明は上記に鑑み、長寿命かつ低価格の耕耘
爪とその製法を提供することを目的とする。 In view of the above, an object of the present invention is to provide a long-life and low-cost tilling claw and a method for manufacturing the same.
（課題を解決するための手段）
本発明による耕耘爪の特徴は、鋼板から形成さ
れた耕耘爪における少なくとも刃縁部に、実質的
に高硬度・高耐摩耗性材を粉砕することで粉末化
された粉末体の圧入による硬化層を有する点にあ
る。(Means for Solving the Problems) A feature of the tilling claw according to the present invention is that the tilling claw is made of a steel plate, and at least on the blade edge thereof, a material having high hardness and high wear resistance is substantially pulverized into powder. It has a hardened layer formed by press-fitting the powder.
本発明による耕耘爪の製造法の特徴は、母材で
ある鋼板の片面又は両面の少なくとも硬化予定部
に実質的に高硬度・高耐摩耗性材を粉砕すること
で粉末化された粉末体を付着させ、次いで前記硬
化予定部表層に対し、圧延・鍛造・プレス等の手
段により該粉末体を母材と結合させて硬化層を有
した刃体素材を形成し、次に該刃体素材の硬化層
を刃縁部とする耕耘爪を得る点にある。 A feature of the method for manufacturing tilling claws according to the present invention is that a powder material obtained by pulverizing a material with high hardness and high wear resistance is applied to at least the hardened portion of one or both surfaces of a steel plate as a base material. Then, the powder is bonded to the base material by rolling, forging, pressing, etc. to the surface layer of the part to be hardened to form a blade material having a hardened layer. The purpose of this invention is to obtain a tiller whose blade edge is made of a hardened layer.
（実施例）
本発明の基本的実施例を第１図〜第４図に示
す。第１図は本発明の耕耘爪６の製造工程図を示
したものであり、以下この図面に基づき説明す
る。先ず母材である鋼（冷）材はプレス又は鍛造
等の手段により、第２図に実線で示すような刃体
素形状材１を作成する。この素形状材１は適宜公
知の方法で表面の脱脂処理、それに続く酸化物除
去等の表面処理に付される。かくして前処理され
た素形状材１は、刃縁部となる硬化予定部２に対
し、第３図、第４図に示す如く、その両面（片面
でも良い）に高硬度・高耐摩耗性粉末体３を適当
な厚さのもとに付着される。(Example) A basic example of the present invention is shown in FIGS. 1 to 4. FIG. 1 shows a manufacturing process diagram of the tilling claw 6 of the present invention, and the following description will be made based on this drawing. First, a steel (cold) material, which is a base material, is used to create a blade material 1 as shown by the solid line in FIG. 2 by means such as pressing or forging. This material 1 is subjected to surface treatments such as surface degreasing and subsequent oxide removal using a known method. As shown in FIGS. 3 and 4, the pretreated material 1 has high hardness and high wear resistance powder applied to both sides (or one side is fine) of the hardened portion 2 that will become the blade edge. The body 3 is attached to an appropriate thickness.
なお、本発明で使用される高硬化・高耐摩耗性
を有する粉末体３は、WC、MoC、TiC、TiN、
TiB2、B4C、BN、Si3N4、SiC、Al2O3、ZrB2、
ZrO2、ダイヤモンド、サイアロンおよびこれら
の組合せがあり、超硬合金粉末でもよい。このさ
い、これらの粉末材が母材とぬれ性が良くない場
合は、これら粉末体表面を改質してぬれ性の向上
したものを用いると良い。また本発明では前記粉
末体３と母材となじみの良い金属粉末（例えば母
材と同系金属粉末）を混合して用いることも出来
る。 In addition, the powder body 3 having high hardening and high wear resistance used in the present invention includes WC, MoC, TiC, TiN,
TiB2 , B4C , BN, Si3N4 , SiC, Al2O3 , ZrB2 ,
These include ZrO 2 , diamond, sialon and combinations thereof, and may also be cemented carbide powder. At this time, if these powder materials do not have good wettability with the base material, it is preferable to use powder materials whose surface has been modified to improve wettability. Further, in the present invention, it is also possible to use a mixture of the powder 3 and a metal powder that is compatible with the base material (for example, a metal powder of the same type as the base material).
そして、粉末体３は前記WC、MoC……等の製
造時に生じるスクラツプを粉砕粉末化したものを
用いる。このように高硬度なものを粉砕して生成
することにより、粉末体３の外表面形状は尖鋭な
ものとなる。なお前記粉末体３の付着手段として
は、次工程の加熱手段で素形状材１から分離しな
いように結合剤を使用することが好ましい。この
結合剤としては鉄系材の溶融時に用いる無機系フ
ラツクス剤が使用できる。かくして粉末体３が付
着した素形状材１は加熱炉において赤熱され、次
いでロールで圧延されることにより粉末体３は硬
化予定部２表層に圧入（圧着）沈下して硬化層４
を形成した刃体素材５が得られる。この素材５の
拡大断面図は第５図に示したとおりである。前記
の粉末体３の圧入沈下状態について更に詳説する
と、粉末体３の付着した素形状体１は加熱炉に於
て加熱されると、母材１側は赤熱状態において軟
化するに対し、粉末体３は高融点且つ超硬質であ
り、更に該粉末体３は前にも述べたようにスクラ
ツプを粉砕した尖鋭なものを使用したので、粉末
体３は母材につきさゝり状に深く圧入沈下し、両
者のぬれ性の良好なことと相まつて強固に冶金的
に近い状態で結合一体化して比較的肉厚の硬化層
４を形成するのである。 The powder 3 is made by pulverizing the scrap produced during the production of WC, MoC, etc. By pulverizing and producing such a highly hard material, the outer surface shape of the powder body 3 becomes sharp. As the means for attaching the powder 3, it is preferable to use a binder so that it does not separate from the shaped material 1 by the heating means in the next step. As this binder, an inorganic flux agent used when melting iron-based materials can be used. The shaped material 1 with the powder 3 adhered to it is heated in a heating furnace and then rolled with rolls, whereby the powder 3 sinks into the surface layer of the area 2 to be hardened and forms a hardened layer 4.
A blade material 5 having a formed thereon is obtained. An enlarged sectional view of this material 5 is shown in FIG. To explain in more detail the sinking state of the powder body 3 during press-fitting, when the base material 1 to which the powder body 3 is attached is heated in a heating furnace, the base material 1 side softens in a red-hot state, while the powder body 3 has a high melting point and is extremely hard, and as mentioned above, the powder 3 was made from crushed scrap and used a sharp one, so the powder 3 was pressed deeply into the base material and settled. However, in combination with the good wettability of both, they are strongly bonded and integrated in a near metallurgical state to form a relatively thick hardened layer 4.
以上のようにして得られた刃体素材５は、これ
を適宜従来の鍛造・プレス手段等により第２図の
一点線で示すように最終の刃体の形状に仕上げら
れて製品６となるのである。 The blade material 5 obtained as described above is finished into the final blade shape as shown by the dotted line in FIG. 2 by appropriate conventional forging and pressing means to become the product 6. be.
なお、第１図におけるロールによる圧延・圧入
手段に代え、金型内鍛造、プレスによる圧入手段
も採用でき、或いは加熱工程を省略しても実施可
能である。 Note that instead of the rolling and press-fitting means using rolls in FIG. 1, forging in a mold or press-fitting means using a press may be employed, or the heating step may be omitted.
第６図は本発明の他の実施例を示す製造工程図
であり、これは母材である鋼材が熱間圧延してで
てきたものに実施する方法であり、第７図は本発
明の更に他の実施例を示す製造工程図であり、第
１図と相違する点は、第６図に示すように硬化層
を作成した刃体素材を得た後に、適宜鍛造・プレ
ス手段により刃体形状等の仕上加工を施し製品を
得る方法であり、何れも本発明方法に属する。 Fig. 6 is a manufacturing process diagram showing another embodiment of the present invention, and this is a method to be applied to a steel material obtained by hot rolling the base material, and Fig. 7 is a manufacturing process diagram showing another embodiment of the present invention. This is a manufacturing process diagram showing still another embodiment, and the difference from FIG. 1 is that after obtaining a blade material with a hardened layer as shown in FIG. This is a method of obtaining a product by subjecting it to finishing processing such as shape, and both belong to the method of the present invention.
なお、上記実施例では耕耘爪として鉈形状のも
のを示したがこれに限定されず、第８図及び第９
図のようなデイスクロータリに用いられるデイス
ク形状の耕耘爪でもよく、第９図における実線は
素形状材１を、２点鎖線は最終製品を示す。 In addition, in the above embodiment, a hatchet-shaped tiller is shown as a tiller, but it is not limited to this, and as shown in FIGS.
A disc-shaped tiller used in a disc rotary as shown in the figure may be used, and the solid line in FIG. 9 indicates the raw material 1, and the two-dot chain line indicates the final product.
（発明の効果）
本発明によれば、耕耘爪の刃縁部の硬化層は高
硬度、高耐摩耗性粉末体により構成されるため、
従来の熱処理による硬化層に比し肉厚で、長期の
使用に耐えるものであり、しかも、母材は鋼板で
粉末体の母材への圧入は既存の圧延、鍛造設備を
用いることができるため低コストで製造できる。(Effects of the Invention) According to the present invention, since the hardened layer on the blade edge of the tilling claw is made of a powder with high hardness and high wear resistance,
It is thicker than the hardened layer created by conventional heat treatment and can withstand long-term use.Moreover, the base material is a steel plate, and existing rolling and forging equipment can be used to press the powder into the base material. Can be manufactured at low cost.
そして、硬化層を構成する粉末体は、高硬度、
高耐摩耗性材を粉砕粉末化したものであるため、
外表面形状は尖鋭なものとなり、母材につきささ
り状に深く圧入されて強固に結合され、母材から
脱落することがないことから長期使用に耐え、し
かも、刃縁部表面に尖鋭粉末体が分布することで
土壌耕耘能力も増大する。 The powder forming the hardened layer has high hardness,
Because it is made by pulverizing a highly wear-resistant material into powder,
The outer surface shape is sharp, and it is deeply press-fitted into the base material and firmly bonded, and it will not fall off from the base material, so it can withstand long-term use. Moreover, the blade edge has a sharp powder on the surface. Distribution also increases soil cultivation capacity.
第１図は本発明製造方法の１実施例を示す工程
図、第２図は刃体素形状材（耕耘爪刃）の平面
図、第３図は第２図の硬化予定部に高硬度・高耐
摩耗性粉末体を散布敷設した状態の平面図、第４
図は第３図Ａ−Ａ線断面図、第５図は刃体素材の
拡大断面図、第６図は本発明方法の他の実施例の
製造工程図、第７図は更に他の実施例の製造工程
図、第８図は刃体素形状材（デイスク刃）の平面
図、第９図は同側断面図である。
１……素形状材、２……硬化予定部、３……高
硬度・高耐摩耗性粉末体、４……硬化層、５……
刃体素材、６……刃体製品。
FIG. 1 is a process diagram showing one embodiment of the manufacturing method of the present invention, FIG. 2 is a plan view of the blade material (cultivating claw blade), and FIG. Top view of the state in which highly wear-resistant powder is spread and laid, 4th
The figures are a sectional view taken along the line A-A in FIG. 3, FIG. 5 is an enlarged sectional view of the blade material, FIG. 6 is a manufacturing process diagram of another embodiment of the method of the present invention, and FIG. 7 is still another embodiment. FIG. 8 is a plan view of the blade material (disc blade), and FIG. 9 is a sectional view of the same side. DESCRIPTION OF SYMBOLS 1... Raw material, 2... Part to be hardened, 3... High hardness/high wear resistance powder, 4... Hardened layer, 5...
Blade material, 6... Blade product.
Claims (1)
も刃縁部に、実質的に高硬度・高耐摩耗性材を粉
砕することで粉末化された粉末体の圧入による硬
化層を有することを特徴とする耕耘爪。 ２ 母材である鋼板の片面又は両面の少なくとも
硬化予定部に実質的に高硬度・高耐摩耗性材を粉
砕することで粉末化された粉末体を付着させ、次
いで前記硬化予定部表層に対し、圧延・鍛造・プ
レス等の手段により該粉末体を母材と結合させて
硬化層を有した刃体素材を形成し、次に該刃体素
材の硬化層を刃縁部とする耕耘爪を得ることを特
徴とする耕耘爪の製造法。[Scope of Claims] 1 A tilling claw formed from a steel plate has a hardened layer formed by press-fitting a powder material made into powder by crushing a material with high hardness and high wear resistance, at least on the edge portion thereof. A tilling claw characterized by this. 2. At least the part to be hardened on one or both sides of the steel plate that is the base material is pulverized with a powder of high hardness and high wear resistance material, and then the powder material is applied to the surface layer of the part to be hardened. , the powder body is combined with a base material by means such as rolling, forging, pressing, etc. to form a blade material having a hardened layer, and then a tilling claw is formed using the hardened layer of the blade material as a blade edge. A method for producing tilling claws characterized by obtaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225609A JPS6283480A (en) | 1985-10-08 | 1985-10-08 | Blade body for work related to soil and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225609A JPS6283480A (en) | 1985-10-08 | 1985-10-08 | Blade body for work related to soil and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283480A JPS6283480A (en) | 1987-04-16 |
| JPH0121874B2 true JPH0121874B2 (en) | 1989-04-24 |
Family
ID=16832002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60225609A Granted JPS6283480A (en) | 1985-10-08 | 1985-10-08 | Blade body for work related to soil and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283480A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0591202U (en) * | 1992-05-21 | 1993-12-14 | 太陽鍛工株式会社 | Partially hardened tillage nail |
| AU6574594A (en) * | 1993-04-26 | 1994-11-21 | Johan Frans Prins | Forming a hard layer on a substrate |
| AT411654B (en) * | 2001-06-25 | 2004-04-26 | Boehler Ybbstal Band Gmbh & Co | METHOD FOR PRODUCING A CUTTING TOOL |
| HU227682B1 (en) * | 2004-06-08 | 2011-11-28 | Istvan Dr Pinter | Method for producing a wear resistant coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4925522A (en) * | 1972-07-04 | 1974-03-07 | ||
| JPS5183871A (en) * | 1975-01-22 | 1976-07-22 | Kobashi Kogyo Kk | KONBANOSEIZOHOHO |
| JPS538378A (en) * | 1976-07-12 | 1978-01-25 | Mitsubishi Metal Corp | Surface hardened tool parts |
| JPS54152281A (en) * | 1978-05-22 | 1979-11-30 | Mitsubishi Metal Corp | Surface-coated tool component and manufacturing method |
| JPS5514872A (en) * | 1978-07-20 | 1980-02-01 | Nippon Carbide Ind Co Ltd | Desulfurizing agent for molten iron |
-
1985
- 1985-10-08 JP JP60225609A patent/JPS6283480A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4925522A (en) * | 1972-07-04 | 1974-03-07 | ||
| JPS5183871A (en) * | 1975-01-22 | 1976-07-22 | Kobashi Kogyo Kk | KONBANOSEIZOHOHO |
| JPS538378A (en) * | 1976-07-12 | 1978-01-25 | Mitsubishi Metal Corp | Surface hardened tool parts |
| JPS54152281A (en) * | 1978-05-22 | 1979-11-30 | Mitsubishi Metal Corp | Surface-coated tool component and manufacturing method |
| JPS5514872A (en) * | 1978-07-20 | 1980-02-01 | Nippon Carbide Ind Co Ltd | Desulfurizing agent for molten iron |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6283480A (en) | 1987-04-16 |
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