Kneading rotor, kneading machine, method for kneading rubber material, and method for manufacturing kneading rotor
US-2022347887-A1 · Nov 3, 2022 · US
Kneading rotor, kneading machine, method for kneading rubber material, and method for manufacturing kneading rotor
US12544954B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12544954-B2 |
| Application number | US-202217659780-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 19, 2022 |
| Priority date | Apr 28, 2021 |
| Publication date | Feb 10, 2026 |
| Grant date | Feb 10, 2026 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The kneading rotor according to one aspect of the present disclosure is a kneading rotor for a kneading machine, comprising a base made of carbon steel or alloy steel for machine structure, a padded layer made of austenitic stainless steel on at least part of a surface of the base and has a hard chromium plated layer on at least part of a surface of the padded layer.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A kneading machine for kneading a rubber material, the kneading machine including a kneading rotor, the kneading rotor comprising: a base made of carbon steel or alloy steel for machine structure, a padded layer made of austenitic stainless steel on at least part of a surface of the base, and a hard chromium plated layer on at least part of a surface of the padded layer. 2 . The kneading machine according to claim 1 , wherein the kneading rotor has: a kneading blade, a padded layer made of Stellite (registered trademark) on at least a tip portion of the kneading blade, and the padded layer made of austenitic stainless steel on a portion excluding the tip portion. 3 . The kneading machine according to claim 1 , wherein the hard chromium plated layer has a thickness of 20 μm or more and a Vickers hardness of Hv750 or more. 4 . The kneading machine according to claim 1 , wherein the kneading rotor has therein a flow channel through which a coolant is allowed to flow. 5 . The kneading machine according to claim 1 , wherein the kneading rotor is an intermeshing rotor. 6 . The kneading machine according to claim 1 , wherein the kneading rotor is a tangential rotor. 7 . A method for kneading a rubber material using a kneading machine for kneading the rubber material, the kneading machine including a kneading rotor, wherein the kneading rotor comprises: a base made of carbon steel or alloy steel for machine structure, a padded layer made of austenitic stainless steel on at least part of a surface of the base, and a hard chromium plated layer on at least part of a surface of the padded layer, the kneading rotor has therein a flow channel through which a coolant is allowed to flow, the rubber material contains silica and a silane coupling agent, the rubber material is kneaded while a coolant is made to flow through the flow channel. 8 . A method for manufacturing a kneading rotor for a kneading machine, the method comprising: forming a padded layer made of austenitic stainless steel on at least part of a surface of a base made of carbon steel or alloy steel for machine structure by welding or fusing, and forming a hard chromium plated layer having a thickness of 20 μm or more and a Vickers hardness of Hv750 or more on at least part of a surface of the padded layer by an electroplating process. 9 . The method for manufacturing a kneading rotor according to claim 8 , wherein the kneading rotor has a kneading blade, the method comprises: forming a padded layer made of Stellite (registered trademark) on at least a surface of a tip portion of the kneading blade by welding or fusing, forming the padded layer made of the austenitic stainless steel on a portion excluding the tip portion by welding or fusing, and forming the hard chromium plated layer on at least part of the padded layer made of the austenitic stainless steel or the padded layer made of the Stellite.
Assignees
Inventors
Classifications
- B29B7/20Primary
with intermeshing devices, e.g. screws · CPC title
Heating or cooling · CPC title
measuring data of the driving system, e.g. torque, speed, power · CPC title
Component parts, details or accessories; Auxiliary operations · CPC title
Apparatus therefor · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12544954B2 cover?
- The kneading rotor according to one aspect of the present disclosure is a kneading rotor for a kneading machine, comprising a base made of carbon steel or alloy steel for machine structure, a padded layer made of austenitic stainless steel on at least part of a surface of the base and has a hard chromium plated layer on at least part of a surface of the padded layer.
- Who is the assignee on this patent?
- Kobe Steel Ltd
- What technology area does this patent fall under?
- Primary CPC classification B29B7/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).