CN2695460Y - Hard wearing metal card clothing - Google Patents
Hard wearing metal card clothing Download PDFInfo
- Publication number
- CN2695460Y CN2695460Y CN 03209487 CN03209487U CN2695460Y CN 2695460 Y CN2695460 Y CN 2695460Y CN 03209487 CN03209487 CN 03209487 CN 03209487 U CN03209487 U CN 03209487U CN 2695460 Y CN2695460 Y CN 2695460Y
- Authority
- CN
- China
- Prior art keywords
- tooth
- card clothing
- hardness
- metal card
- wear
- 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 - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 20
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 4
- 239000010962 carbon steel Substances 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 13
- 229910000734 martensite Inorganic materials 0.000 claims description 7
- 238000010791 quenching Methods 0.000 abstract description 16
- 230000000171 quenching effect Effects 0.000 abstract description 16
- 238000009987 spinning Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 description 4
- 238000009960 carding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000000332 tooth crown Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Heat Treatment Of Articles (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
一种适于纺纱机械用的耐磨金属针布，该耐磨金属针布包括：用碳钢或合金钢制作的一具有基部上有齿部的齿条；所述的齿部上包括：一呈凹形的齿底和底部呈凸弧形状的齿尖；其中齿尖上包括淬硬层。本实用新型的优点：齿尖硬度分布均匀，而齿底及基部硬度保持不变，具有更好的塑性。齿尖部位经激光淬火后硬度可达到800HV～950HV，耐磨性大大的得到改善。
A wear-resistant metal card clothing suitable for spinning machinery, the wear-resistant metal card clothing includes: a rack made of carbon steel or alloy steel with teeth on the base; the teeth include: A tooth bottom with a concave shape and a tooth tip with a convex arc shape at the bottom; wherein the tooth tip includes a hardened layer. The utility model has the advantages that the tooth tip hardness is evenly distributed, while the tooth bottom and base hardness remain unchanged, and has better plasticity. The hardness of tooth tips can reach 800HV～950HV after laser quenching, and the wear resistance is greatly improved.
Description
Technical field
The utility model relates to a kind of metallic card clothing, particularly relates to a kind of antifriction metal (AFM) card clothing (also claiming tooth bar) that is suitable for spinning machinery (as carding machine etc.) usefulness.
Background technology
Fig. 1, metallic card clothing shown in Figure 2 are used for spinning machinery such as carding machine, be wrapped in the cylinder surface of region of interest, processing object (is carried out combing as various natural fabrics such as cotton textiles, fiber crops, spun silk, animal down and synthetic fiber, plays extracting, shredding, removal of impurities, gripping, branch comb, all mixes, effects such as transfer, cohesion.In order to give full play to these effects, require the tooth portion of metallic card clothing to have enough intensity, crown and seamed edge corner angle have good sharpness, and have ABRASION RESISTANCE preferably as far as possible; Simultaneously, be convenient to winding in use in cylinder surface in order to make metallic card clothing, its base portion and tooth root position must have enough plasticity.The common metal card clothing is to be rolled processing and forming through drawing, heat treated spheroidizing state specification wire to become base sheet (cross sectional shape such as Fig. 2), then the base sheet is die-cut into zigzag (as Fig. 1), makes zigzag tooth bar finished product through operations such as annealing, the quenching of tooth portion, tempering, surface treatment, packages again.The tooth portion quenching technical that exhausted now big number produces house adopts the flame hardening mode, promptly adopts the flame heat mode on production line, and the operating metallic card clothing semi-finished product of continuous feed (towards tooth) are quenched.Because the crown position is subjected to degree of heat very inhomogeneous, flame can't accurately be aimed at should heat the position, causes tooth portion quenching quality (hardness and metallographic structure) instability, and the quench-hardened case position deviation is big, thereby influences the service life of metallic card clothing.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned existing metallic card clothing, in order to obtain the suitable hardness of metallic card clothing and to solve the metallic card clothing problem in service life effectively, thereby provides a kind of antifriction metal (AFM) card clothing.
The purpose of this utility model is achieved like this:
The antifriction metal (AFM) card clothing that the utility model provides comprises: one have the tooth bar that zigzag tooth portion 2 is arranged on the base portion 1 with what carbon steel or steel alloy were made; Have at the bottom of the tooth 3 and crown 6 in the described zigzag tooth portion 2,3 tops are spill at the bottom of the tooth, and crown 6 bottoms are arc convex, and the arc convex of its crown 6 bottoms is seated at the bottom of two teeth at the bottom of the tooth between 3 in the 3 top spills; It is characterized in that: comprise quench-hardened case 4 on the described crown 6.
6 also comprise on the described crown: a transition zone 5; This transition zone 5 at the bottom of the tooth 3 and quench-hardened case 4 between, transition zone 5 is attached to crown 6 bottoms that are the convex arc shape.
3 distance (being tooth depth h6) is 0.1～1.0mm at the bottom of from the pinnacle of crown 6 to tooth.
Described quench-hardened case 4 for from the pinnacle of crown 6 down at the bottom of the tooth 3 distance H be 0.5～0.9mm, be quench-hardened case 4 degree of depth; The depth H of quench-hardened case 4 is generally less than tooth portion 2 height, the depth H (see figure 3) deviation of quench-hardened case 4≤± 0.10mm (degree of depth h6 of tooth portion minimum only is about 0.4mm usually).The hardness of this quench-hardened case 4 can reach 850～900HV, and metallographic structure is uniformly latent acicular martensitic structure (carbide is disperse and distributes).Described quench-hardened case 4 is the convex arc shape with connection, 3 top at the bottom of the tooth,
Described transition zone height is: 0.05mm-0.10mm, and be crescent under the convex arc attached to tooth subordinate side.
The crown hardness of the antifriction metal (AFM) card clothing that the utility model provides is evenly distributed, and at the bottom of the tooth and base portion hardness remain unchanged, has better plasticity, this is owing to adopting laser beam that the continuous heating quenching of metallic card clothing tooth portion is formed, laser beam can be less during to metallic card clothing tooth portion heating quenching to the H size tooth portion (tooth depth h6 minimum is only for about 0.4mm) position accurately heat, thereby avoiding the flame heat mode accurately to locate (heats too shallow, heat too deeply, make at the bottom of tooth that this should not be heated to and base portion also has been subjected to heating quenching to a certain degree) shortcoming.
The antifriction metal (AFM) card clothing that the utility model provides is compared with the common metal card clothing, has the following advantages:
1, metallic card clothing of the present utility model has higher ABRASION RESISTANCE (as shown in Figure 4) than common metal card clothing, crown hardness is evenly distributed, and at the bottom of the tooth and base portion hardness remain unchanged, has better plasticity, in use help improving carding effect (as reducing cotton junction impurity etc.) to fiber, the obvious raising service life prolongs the card grinding cycle in using, and adapted to spinning machinery high efficiency (high speed high yield) and spinning quality is required the development need of raising day by day.
2, the crown metallographic structure is a martensitic structure by former spherical perlitic transformation, it is more tiny, even to be that cryptocrystalline martensite is organized, and carbide (hard particle) is disperse and distributes, and the spread is bigger, so ABRASION RESISTANCE is more superior, crown position hardness after laser quenching can reach 800HV～950HV.
Description of drawings
Fig. 1 is by being painted the metallic card clothing structural front view according to industry standard, expression has the front shape of metallic card clothing, and wherein h6 is a tooth depth, and P is a tooth pitch, and α is an anterior angle, and γ is a Clearance angle.
Fig. 2 is the left view of metallic card clothing shown in Figure 1, the cross sectional shape of expression metallic card clothing, and wherein h1 is a height overall, and h2 is the base portion height, and b1 is that base portion is wide, and b2 is that tooth portion is wide, b3 is that crown is wide.
Fig. 3 is the another kind of example structure profile of metallic card clothing of the present utility model, at the bottom of having marked tooth portion, tooth among the figure, 3 zones of base portion, at the bottom of having marked crown, tooth, 3 positions of base portion, and (quench-hardened case roughly is to descend the convex arc shape at tooth subordinate method, edge as shown in FIG., and H represents hardening depth to have marked the quench-hardened case after the quenching, transition zone; Transition zone evenly distributes outside the quench-hardened case lower limb).
Fig. 4 is a metallic card clothing quenching curve map, ordinate is tooth depth percentage (corresponding with the right profile of tooth), abscissa is that Vickers shows dimension hardness for the hardness number after quenching, and 1,2 curves are represented common metal card clothing and two kinds of quenching curves of metallic card clothing of the present utility model respectively among the figure.
Fig. 5 is each position section of structure of metallic card clothing of the present utility model
The drawing explanation
At the bottom of the 1-base portion 2-tooth 3-of the portion tooth
4-quench-hardened case 5-transition zone 6-crown
The specific embodiment
Below in conjunction with accompanying drawing and present embodiment the utility model is elaborated:
With reference to Fig. 3, the antifriction metal (AFM) card clothing that present embodiment provides comprises: have the tooth bar that serrated teeth portion 2 is arranged on the base portion 1 with one of carbon steel or steel alloy making; The tooth portion 2 of this tooth bar be provided be at the bottom of the spill tooth 3 and the bottom be the crown 6 of convex; 3 distance (being tooth depth h6) is 0.1～1.0mm at the bottom of from the pinnacle of crown 6 to tooth; Counting down from the pinnacle of crown 6, distance H is the quench-hardened case 4 of 0.5～0.9mm; The hardness of this quench-hardened case 4 can reach 850～900HV, and metallographic structure is uniformly latent acicular martensitic structure (carbide is disperse and distributes).
With reference to Fig. 5, present embodiment is on the basis of embodiment 1, at the bottom of the tooth 3 and quench-hardened case 4 between one deck transition zone 5 also is set, the height of transition zone 5 is 0.05～0.10mm; 3 distance h 6 is 0.4～0.6mm at the bottom of from the pinnacle of crown 6 to tooth; The depth H of quench-hardened case 4 is 0.3～0.5mm; The hardness of this quench-hardened case 4 can reach 800～900HV, the latent uniformly acicular martensitic structure of metallographic structure (carbide is disperse and distributes).
The quenching curve of common metal card clothing and the utility model metallic card clothing is seen Fig. 4, therefrom can find out both hardness differences.
The quenching hardness result of tooth portion almost can be consistent, and quench-hardened case roughly is convex arc shape down in tooth subordinate side.Hardening depth H (see figure 3) deviation≤± (degree of depth h6 of tooth portion minimum only is about 0.4mm to 0.10mm usually, the hardening depth deviation is much larger than the laser quenching mode under the flame hardening mode), the transition zone of metallic card clothing (is seen Fig. 3, its hardness is lower than quench-hardened case) very little, two regional (see figure 3) hardness numbers of tooth root and base portion are constant, maintain the plasticity that is beneficial to winding.Tooth portion (former spherical pearlitic structrure) is changed after quenching obtain desirable metallographic structure (latent needle-like, superfine acicular martensitic structure), quench-hardened case (see figure 3) hardness reaches 800～950HV (vickers microhardness).Metallic card clothing of the present utility model has higher ABRASION RESISTANCE (as shown in Figure 4) than common metal card clothing, in use help improving carding effect (as reducing cotton junction impurity etc.) to fiber, obviously improve service life, prolong the card grinding cycle in using, adapted to spinning machinery high efficiency (high speed high yield) and spinning quality is required the development need of raising day by day.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209487 CN2695460Y (en) | 2002-11-25 | 2003-09-12 | Hard wearing metal card clothing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02287546 | 2002-11-25 | ||
| CN02287546.8 | 2002-11-25 | ||
| CN 03209487 CN2695460Y (en) | 2002-11-25 | 2003-09-12 | Hard wearing metal card clothing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695460Y true CN2695460Y (en) | 2005-04-27 |
Family
ID=34796098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209487 Expired - Fee Related CN2695460Y (en) | 2002-11-25 | 2003-09-12 | Hard wearing metal card clothing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695460Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070920A (en) * | 2016-11-16 | 2018-05-25 | 格拉夫及西有限公司 | All-steel card clothing |
| CN109371516A (en) * | 2018-10-30 | 2019-02-22 | 昆山立达纺织实业有限公司 | A kind of metallic card clothing and its processing method |
-
2003
- 2003-09-12 CN CN 03209487 patent/CN2695460Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070920A (en) * | 2016-11-16 | 2018-05-25 | 格拉夫及西有限公司 | All-steel card clothing |
| CN109371516A (en) * | 2018-10-30 | 2019-02-22 | 昆山立达纺织实业有限公司 | A kind of metallic card clothing and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050427 |