TW201605607A - Manufacturing method of composite material having negative ion effect and product - Google Patents
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本發明有關一種複合材料及產品的製造方法，尤指一種具負離子效果之複合材料及產品的製造方法。The invention relates to a composite material and a method for manufacturing the same, in particular to a composite material with negative ion effect and a method for manufacturing the product.
依據臨床實驗結果，可釋放負離子或發射遠紅外線之材料，係對人體有良好之影響，而具有保健效果，電氣石(Tourmaline)為其中一種材料，其係一種兼具熱釋電性及壓電性之礦物，近來之研究進一步顯示電氣石具備有釋放負離子、發射遠紅外線等功能，而逐漸吸引保健及醫療相關業者的注意與重視，目前市面上已出現許多含有電氣石材料之產品，而業者更不斷針對其成份進行研發，如美國發明專利公告第US 6,251,306號及第US 6,004,588號所示。 除材料組成之開發外，相關產業者亦不斷嘗試將電氣石材料製作成各種形狀，或將其與其他材料結合，以生產各式各樣之產品，符合市場需求。例如美國發明專利公告第US 8,366,757號，揭示一種具有發射遠紅外線及/或負離子產生性質之泡棉墊及其製造方法，該泡棉墊包括一基底材料以及一細粉，該基底材料可為橡膠、氯丁橡膠、聚氯乙烯、聚氨酯、黏彈性泡棉或其他合成樹脂，該細粉包括一發射遠紅外線及/或負離子產生性質之礦石材料，其中該細粉係分散於該基底材料之中，該發射遠紅外線及/或負離子產生性質之礦石材料可為氧化鋁、鐵、銅、氧化鉻、氧化鈦、鋯石或二氧化矽。 然上述之製造方法僅侷限於製作軟質或可撓性之產品，礙於材料之機械性質以及形狀，其應用有限，無法滿足剛性材料應用之需求，加工上亦有困難。因此，有待開發不同之製程，以將電氣石材料與其他材料結合而擴大其應用範圍。According to the results of clinical experiments, materials that can release negative ions or emit far-infrared rays have a good effect on the human body, and have health effects. Tourmaline is one of the materials, which is a combination of pyroelectricity and piezoelectricity. Minerals, recent research has further shown that tourmaline has the functions of releasing negative ions and emitting far infrared rays, and gradually attracts the attention and attention of health care and medical related industries. Currently, many products containing tourmaline materials have appeared on the market. Further research and development is carried out on its components, as shown in U.S. Patent No. 6,251,306 and U.S. Patent No. 6,004,588. In addition to the development of material composition, relevant industry players are constantly trying to make tourmaline materials into various shapes, or combine them with other materials to produce a wide range of products to meet market demand. For example, U.S. Patent No. 8,366,757 discloses a foam pad having a property of emitting far infrared rays and/or negative ions, and a method of manufacturing the same, the foam pad comprising a base material and a fine powder, the base material being rubber , neoprene, polyvinyl chloride, polyurethane, viscoelastic foam or other synthetic resin, the fine powder comprising an ore material that emits far infrared rays and/or negative ion generating properties, wherein the fine powder is dispersed in the base material The ore material that emits far infrared and/or negative ion generating properties may be alumina, iron, copper, chromium oxide, titanium oxide, zircon or hafnium oxide. However, the above manufacturing method is limited to the production of a soft or flexible product. Due to the mechanical properties and shape of the material, its application is limited, and it cannot meet the requirements of the rigid material application, and the processing is also difficult. Therefore, different processes have yet to be developed to combine tourmaline materials with other materials to expand their range of applications.
本發明的主要目的，在於解決習知具負離子效果之複合材料及產品的製造方法，無法製作成剛性材料或難以加工等缺點。 為達上述目的，本發明提供一種具負離子效果之複合材料的製造方法，包括以下步驟： 步驟S1：均勻混合一電氣石粉末、一金屬粉末及一黏結劑而得到一射料； 步驟S2：將該射料利用一射出成形機得到一生胚； 步驟S3：去除該生胚內之該黏結劑；以及 步驟S4：將該生胚加熱至一燒結溫度而得到該具負離子效果之複合材料。 藉由上述技術手段，本發明相較於習知技術係具有以下優點： 一、本發明係將具備負離子效果之該電氣石粉末與該金屬粉末結合而製成具負離子效果之複合材料，所得到之該複合材料係具備一定程度之剛性，以及優良的機械性質，可滿足更多的應用需求； 二、由於本發明係採用金屬射出成形(Metal Injection Molding，簡稱MIM)製程，可成形各種形狀之複合材料，甚至可製作成複雜形狀的工件或大體積之產品； 三、承上，由於採金屬射出成形製程，故所得到的產品，其尺寸精確度佳，且易於再進行表面處理。The main object of the present invention is to solve the conventional method for manufacturing a composite material having an anion effect and a product, which cannot be made into a rigid material or difficult to process. In order to achieve the above object, the present invention provides a method for manufacturing a composite material having an anion effect, comprising the following steps: Step S1: uniformly mixing a tourmaline powder, a metal powder and a binder to obtain a shot; Step S2: The shot is obtained by using an injection molding machine to obtain a green embryo; Step S3: removing the adhesive in the green embryo; and Step S4: heating the green embryo to a sintering temperature to obtain the negative ion-effect composite material. The present invention has the following advantages over the prior art by the above technical means: 1. The present invention combines the tourmaline powder having an anion effect with the metal powder to form a composite material having an anion effect. The composite material has a certain degree of rigidity and excellent mechanical properties, and can meet more application requirements. 2. Since the invention adopts a metal injection molding (MIM) process, various shapes can be formed. Composite materials, even can be made into complex shapes of workpieces or large-volume products; Third, the bearing, due to the metal injection molding process, the resulting product, its dimensional accuracy is good, and easy to surface treatment.
有關本發明的詳細說明及技術內容，現就配合圖式說明如下： 本發明提供一種具負離子效果之複合材料及產品的製造方法，本發明第一實施例係該複合材料的製造方法，包括以下步驟S1至步驟S4： 步驟S1：均勻混合一電氣石粉末、一金屬粉末及一黏結劑而得到一射料，於本發明中，該電氣石粉末可以為氧化鎂(MgO)、氧化鋁(Al2 O3 )、氧化鈣(CaO)、二氧化矽(SiO2 )、氧化鋯(ZrO2 )、氧化鐵(Fe2 O3 )、氧化鈦(TiO2 )、氧化鈰(CeO2 )、氧化鍶(SrO)或其組合等，且該電氣石粉末之粒徑介於0.2μm至5μm之間，該金屬粉末之組成較佳地符合316L不銹鋼或304不銹鋼之標準，該黏結劑可以為聚丙烯、聚乙烯、蜜蠟、石蠟、微晶蠟、壓克力膠、硬脂酸、聚甲醛、聚脂或其組合等。此外，該電氣石粉末相對該射料之重量百分比係介於5 wt.%至20 wt.%之間，該金屬粉末相對該射料之重量百分比介於80 wt.%至95 wt.%之間，該黏結劑相對該射料之重量百分比介於5 wt.%至15 wt.%之間。 完成步驟S1後，接續進行步驟S2：將該射料利用一射出成形機得到一生胚。接著，進行步驟S3：去除該生胚內之該黏結劑，於本發明中，可使用一溶劑脫脂技術或一觸媒脫脂技術去除該生胚內之該黏結劑；完成步驟S3後，即進行步驟S4：將該生胚加熱至一燒結溫度而得到該具負離子效果之複合材料，於步驟S4中，該生胚係處於一還原氣氛中，該還原氣氛可為氬氣、裂解氨、氫氣或其組合，其中，步驟S4係可使用一真空燒結爐或一連續式之氣氛燒結爐，當使用該真空燒結爐時，該還原氣氛較佳為氬氣，若使用該連續式之氣氛燒結爐，則該還原氣氛較佳為裂解氨或氫氣。 本發明之第二實施例係該複合物品的製作方法，除上述之步驟S1至步驟S4外，進一步包括以下之步驟S5至步驟S7： 步驟S5：先提供一由步驟S4得到的該具負離子效果之複合材料，並進行步驟S6：對該複合材料進行一表面處理，該表面處理可為噴砂、研磨、拋光或電鍍等，其中，噴砂可採磁針噴砂。完成步驟S6後，即進行步驟S7：將該複合材料和一基材結合，令該複合材料形成一嵌埋於該基材的埋入部分以及一暴露在外的外露部分，步驟S7可採用一鑲嵌技術或一包射技術將該複合材料和該基材結合。請搭配參閱『圖1』至『圖2』所示，『圖1』為本發明第二實施例之立體外觀示意圖，『圖2』為本發明第二實施例另一態樣之立體外觀示意圖，該具負離子效果之複合產品10包括該基材20以及該複合材料30，其中，『圖1』係採該鑲嵌技術製作，而『圖1』係採該包射技術製作。 為進一步具體說明本發明具負離子效果之複合材料及產品的製造方法之內容，請續參閱下述依據本發明進行之實施例以及採用其他技術進行之比較例：實驗例 1 ： 先利用一V型混合機均勻混合該電氣石粉末、該金屬粉末及該黏結劑約1.5小時，並利用一捏合機在170℃下進行均勻捏合後得到該射料。本實驗例中，該電氣石粉末的組成為64.5 wt.%的氧化鋯、23.5 wt.%的氧化矽、5 wt.%的氧化鈦、4 wt.%的氧化鋁、2 wt.%的氧化鎂、0.5 wt.%的氧化鍶及0.5 wt.%氧化鈰，而該電氣石粉末的重量百分比為5 wt. %，該金屬粉末為316L不銹鋼，平均粒徑為13μm，重量百分比為87 wt. %，該黏結劑包括聚乙烯、蜜蠟、石蠟及壓克力膠，重量百分比為8 wt. %。接著，利用該射出成形機得到該生胚，該生胚的尺寸為30 mm x10 mm x3mm。之後，升溫至550℃並持溫2小時對該生胚進行脫脂以去除該黏結劑，再將該生胚加熱至1,370℃的該燒結溫度並持溫2小時而得到該具負離子效果之複合材料。 所得到的該複合材料係利用一負離子量測機(型號：Ion Tester COM-3010Pro)量測該複合材料所帶有的負離子能量，實驗例1之該複合材料的負離子能量為1,213 ion/cc，而燒結密度為7.48 g/cm3 。實驗例 2 ： 先利用一V型混合機均勻混合該電氣石粉末、該金屬粉末及該黏結劑約1.5小時，並利用一捏合機在170℃下進行均勻捏合後得到該射料。本實驗例中，該電氣石粉末的組成同實驗例1，該電氣石粉末的重量百分比為2.6 wt. %，該金屬粉末為316L不銹鋼，平均粒徑為13μm，重量百分比為89.2 wt. %，該黏結劑包括聚乙烯、蜜蠟、石蠟及壓克力膠，重量百分比為8.2 wt. %。接著，利用該射出成形機得到該生胚，該生胚的尺寸為30 mm x10 mm x3mm。之後，升溫至550℃並持溫2小時對該生胚進行脫脂以去除該黏結劑，再將該生胚加熱至1,370℃的該燒結溫度並持溫2小時而得到該具負離子效果之複合材料。 所得到的該複合材料係利用一負離子量測機(型號：Ion Tester COM-3010Pro)量測該複合材料所帶有的負離子能量，實驗例2之該複合材料的負離子能量為827 ion/cc，而燒結密度為7.56 g/cm3 。實驗例 3 ： 先利用一V型混合機均勻混合該電氣石粉末、該金屬粉末及該黏結劑約1.5小時，並利用一捏合機在170℃下進行均勻捏合後得到該射料。本實驗例中，該電氣石粉末的組成同實驗例1，該電氣石粉末的重量百分比為1.0 wt. %，該金屬粉末為316L不銹鋼，平均粒徑為13μm，重量百分比為90.6 wt. %，該黏結劑包括聚乙烯、蜜蠟、石蠟及壓克力膠，重量百分比為8.3 wt. %。接著，利用該射出成形機得到該生胚，該生胚的尺寸為30 mm x10 mm x3mm。之後，升溫至550℃並持溫2小時對該生胚進行脫脂以去除該黏結劑，再將該生胚加熱至1,370℃的該燒結溫度並持溫2小時而得到該具負離子效果之複合材料。 所得到的該複合材料係利用一負離子量測機(型號：Ion Tester COM-3010Pro)量測該複合材料所帶有的負離子能量，實驗例3之該複合材料的負離子能量為541 ion/cc，而燒結密度為7.62 g/cm3 。比較例 1 ： 先利用一V型混合機均勻混合該金屬粉末及該黏結劑約1.5小時，並利用一捏合機在170℃下進行均勻捏合後得到該射料。本實驗例中，該金屬粉末為316L不銹鋼，平均粒徑為13μm，重量百分比為91.6 wt. %，該黏結劑包括聚乙烯、蜜蠟、石蠟及壓克力膠，重量百分比為8.4 wt. %。接著，利用該射出成形機得到該生胚，該生胚的尺寸為30 mm x10 mm x3mm。之後，升溫至550℃並持溫2小時對該生胚進行脫脂以去除該黏結劑，再將該生胚加熱至1,370℃的該燒結溫度並持溫2小時而得到一複合材料。 所得到的該複合材料係利用一負離子量測機(型號：Ion Tester COM-3010Pro)量測該複合材料所帶有的負離子能量，比較例1之該複合材料的負離子能量為24 ion/cc，而燒結密度為7.68 g/cm3 。 由以上可知，實驗例1至3係利用本發明之製造方法所得到的該複合材料，具有負離子效果以及良好的燒結密度；反觀，未添加該電氣石粉末的比較例1，雖有不錯的燒結密度，但並不具有負離子效果。 綜上所述，本發明將具備負離子效果的該電氣石粉末與該金屬粉末結合而製成具負離子效果之複合材料，由於該複合材料具備剛性以及優良的機械性質，將使包含該電氣石粉末之複合材料的應用更為多元；其次，由於本發明採用金屬射出成形製作該複合材料，基於金屬射出成形製程之優勢，該複合材料易於直接成形為各種形狀，亦可製作成複雜形狀的工件或大體積之產品；再者，由於採金屬射出成形製程，故所得到的產品，其尺寸精確度佳，且易於再進行表面處理。The detailed description and technical contents of the present invention will now be described as follows: The present invention provides a method for producing a composite material having an anion effect and a product, and the first embodiment of the present invention is a method for manufacturing the composite material, including the following Step S1 to Step S4: Step S1: uniformly mixing a tourmaline powder, a metal powder and a binder to obtain a shot. In the present invention, the tourmaline powder may be magnesium oxide (MgO) or aluminum oxide (Al). 2 O 3 ), calcium oxide (CaO), cerium oxide (SiO 2 ), zirconium oxide (ZrO 2 ), iron oxide (Fe 2 O 3 ), titanium oxide (TiO 2 ), cerium oxide (CeO 2 ), oxidation锶(SrO) or a combination thereof, and the tourmaline powder has a particle diameter of between 0.2 μm and 5 μm, and the composition of the metal powder preferably conforms to the standard of 316L stainless steel or 304 stainless steel, and the binder may be polypropylene , polyethylene, beeswax, paraffin wax, microcrystalline wax, acrylic glue, stearic acid, polyoxymethylene, polyester or a combination thereof. In addition, the weight percentage of the tourmaline powder relative to the shot is between 5 wt.% and 20 wt.%, and the weight percentage of the metal powder relative to the shot is between 80 wt.% and 95 wt.%. The weight percentage of the binder relative to the shot is between 5 wt.% and 15 wt.%. After step S1 is completed, step S2 is continued: the shot is obtained by an injection molding machine to obtain a green embryo. Next, step S3 is performed to remove the bonding agent in the green embryo. In the present invention, the binder in the green embryo may be removed by a solvent degreasing technique or a catalyst degreasing technique; after the step S3 is completed, the bonding is performed. Step S4: heating the green body to a sintering temperature to obtain the composite material having an anion effect. In step S4, the green germ system is in a reducing atmosphere, and the reducing atmosphere may be argon gas, pyrolysis ammonia, hydrogen gas or In the combination, in step S4, a vacuum sintering furnace or a continuous atmosphere sintering furnace can be used. When the vacuum sintering furnace is used, the reducing atmosphere is preferably argon. If the continuous atmosphere sintering furnace is used, The reducing atmosphere is preferably cracked ammonia or hydrogen. The second embodiment of the present invention is a method for manufacturing the composite article. In addition to the above steps S1 to S4, the method further includes the following steps S5 to S7: Step S5: first providing a negative ion effect obtained by the step S4 The composite material is subjected to step S6: a surface treatment is performed on the composite material, and the surface treatment may be sandblasting, grinding, polishing or electroplating, etc., wherein the sandblasting may be performed by magnetic needle blasting. After the step S6 is completed, the step S7 is performed: the composite material is combined with a substrate, and the composite material is formed into a buried portion embedded in the substrate and an exposed portion exposed. The step S7 can adopt a mosaic. The composite material is bonded to the substrate by a technique or a coating technique. Please refer to FIG. 1 to FIG. 2, FIG. 1 is a perspective view of a second embodiment of the present invention, and FIG. 2 is a perspective view of another embodiment of the second embodiment of the present invention. The composite product 10 having an anion effect includes the substrate 20 and the composite material 30, wherein "FIG. 1" is produced by the inlay technique, and "FIG. 1" is produced by the coating technique. In order to further specifically describe the contents of the composite material having the negative ion effect of the present invention and the method for producing the product, please refer to the following examples according to the present invention and comparative examples using other techniques: Experimental Example 1 : First use of a V type The tourmaline powder was uniformly mixed with the tourmaline powder, the metal powder and the binder for about 1.5 hours, and uniformly kneaded at 170 ° C by a kneader to obtain the shot. In this experimental example, the composition of the tourmaline powder was 64.5 wt.% of zirconium oxide, 23.5 wt.% of cerium oxide, 5 wt.% of titanium oxide, 4 wt.% of alumina, and 2 wt.% of oxidation. Magnesium, 0.5 wt.% cerium oxide and 0.5 wt.% cerium oxide, and the weight percentage of the tourmaline powder is 5 wt.%, the metal powder is 316L stainless steel, the average particle diameter is 13 μm, and the weight percentage is 87 wt. %, the binder comprises polyethylene, beeswax, paraffin and acrylic glue, and the weight percentage is 8 wt.%. Next, the green body was obtained by the injection molding machine, and the size of the green embryo was 30 mm x 10 mm x 3 mm. Thereafter, the raw material is degreased to a temperature of 550 ° C for 2 hours to remove the binder, and the green body is heated to a sintering temperature of 1,370 ° C for 2 hours to obtain the composite material having an anion effect. . The composite material obtained was measured by an anion measuring machine (Model: Ion Tester COM-3010Pro) for the negative ion energy carried by the composite material, and the negative ion energy of the composite material of Experimental Example 1 was 1,213 ion/cc. The sintered density was 7.48 g/cm 3 . Experimental Example 2 : The tourmaline powder, the metal powder and the binder were uniformly mixed by a V-type mixer for about 1.5 hours, and uniformly kneaded at 170 ° C by a kneader to obtain the shot. In the experimental example, the composition of the tourmaline powder is the same as in Experimental Example 1, the weight percentage of the tourmaline powder is 2.6 wt.%, the metal powder is 316L stainless steel, the average particle diameter is 13 μm, and the weight percentage is 89.2 wt.%. The binder comprises polyethylene, beeswax, paraffin wax and acrylic glue in a weight percentage of 8.2 wt.%. Next, the green body was obtained by the injection molding machine, and the size of the green embryo was 30 mm x 10 mm x 3 mm. Thereafter, the raw material is degreased to a temperature of 550 ° C for 2 hours to remove the binder, and the green body is heated to a sintering temperature of 1,370 ° C for 2 hours to obtain the composite material having an anion effect. . The composite material obtained was measured by an anion measuring machine (Model: Ion Tester COM-3010Pro) for the negative ion energy carried by the composite material, and the negative ion energy of the composite material of Experimental Example 2 was 827 ion/cc. The sintered density was 7.56 g/cm 3 . Experimental Example 3 : The tourmaline powder, the metal powder and the binder were uniformly mixed by a V-type mixer for about 1.5 hours, and uniformly kneaded at 170 ° C by a kneader to obtain the shot. In the experimental example, the composition of the tourmaline powder is the same as in Experimental Example 1, the weight percentage of the tourmaline powder is 1.0 wt.%, the metal powder is 316L stainless steel, the average particle diameter is 13 μm, and the weight percentage is 90.6 wt.%. The binder comprises polyethylene, beeswax, paraffin wax and acrylic glue in a weight percentage of 8.3 wt.%. Next, the green body was obtained by the injection molding machine, and the size of the green embryo was 30 mm x 10 mm x 3 mm. Thereafter, the raw material is degreased to a temperature of 550 ° C for 2 hours to remove the binder, and the green body is heated to a sintering temperature of 1,370 ° C for 2 hours to obtain the composite material having an anion effect. . The obtained composite material was measured for negative ion energy carried by the composite material using an anion measuring machine (Model: Ion Tester COM-3010Pro), and the negative ion energy of the composite material of Experimental Example 3 was 541 ion/cc. The sintered density was 7.62 g/cm 3 . Comparative Example 1 : The metal powder and the binder were uniformly mixed by a V-type mixer for about 1.5 hours, and uniformly kneaded at 170 ° C by a kneader to obtain the shot. In the experimental example, the metal powder is 316L stainless steel, the average particle diameter is 13 μm, and the weight percentage is 91.6 wt.%. The adhesive includes polyethylene, beeswax, paraffin and acrylic glue, and the weight percentage is 8.4 wt.%. . Next, the green body was obtained by the injection molding machine, and the size of the green embryo was 30 mm x 10 mm x 3 mm. Thereafter, the green body was heated to 550 ° C and held for 2 hours to degrease the binder to remove the binder, and the green body was heated to a sintering temperature of 1,370 ° C for 2 hours to obtain a composite material. The composite material obtained was measured by an anion measuring machine (Model: Ion Tester COM-3010Pro) for the negative ion energy of the composite material, and the composite material of Comparative Example 1 had a negative ion energy of 24 ion/cc. The sintered density was 7.68 g/cm 3 . As apparent from the above, Experimental Examples 1 to 3 are obtained by the production method of the present invention, which have an anion effect and a good sintered density; in contrast, Comparative Example 1 in which the tourmaline powder is not added has a good sintering. Density, but does not have an anion effect. In summary, the present invention combines the tourmaline powder having an anion effect with the metal powder to form a composite material having an anion effect. Since the composite material has rigidity and excellent mechanical properties, the tourmaline powder is included. The composite material is more versatile; secondly, since the composite material is formed by metal injection molding according to the present invention, the composite material can be directly formed into various shapes or can be fabricated into a complicated shape based on the advantages of the metal injection molding process. Large-volume products; furthermore, due to the metal injection molding process, the resulting product is dimensionally accurate and easy to be surface treated.
10‧‧‧具負離子效果之複合產品
20‧‧‧基材
30‧‧‧複合材料10‧‧‧Composite products with negative ion effect
20‧‧‧Substrate
30‧‧‧Composite materials
『圖1』，為本發明第二實施例之立體外觀示意圖。 『圖2』，為本發明第二實施例另一態樣之立體外觀示意圖。FIG. 1 is a schematic perspective view of a second embodiment of the present invention. FIG. 2 is a schematic perspective view showing another aspect of the second embodiment of the present invention.
10‧‧‧具負離子效果之複合產品 10‧‧‧Composite products with negative ion effect
20‧‧‧基材 20‧‧‧Substrate
30‧‧‧複合材料 30‧‧‧Composite materials
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103128075A TW201605607A (en) | 2014-08-15 | 2014-08-15 | Manufacturing method of composite material having negative ion effect and product |
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| Application Number | Priority Date | Filing Date | Title |
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| TW103128075A TW201605607A (en) | 2014-08-15 | 2014-08-15 | Manufacturing method of composite material having negative ion effect and product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201605607A true TW201605607A (en) | 2016-02-16 |
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| Country | Link |
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| TW (1) | TW201605607A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798498A (en) * | 2020-12-31 | 2021-12-17 | 昆山卡德姆新材料科技有限公司 | Stainless steel product and preparation method thereof |
| CN113957316A (en) * | 2021-09-17 | 2022-01-21 | 昆山卡德姆新材料科技有限公司 | Phase change hardened stainless steel product and manufacturing method thereof |
-
2014
- 2014-08-15 TW TW103128075A patent/TW201605607A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798498A (en) * | 2020-12-31 | 2021-12-17 | 昆山卡德姆新材料科技有限公司 | Stainless steel product and preparation method thereof |
| CN113957316A (en) * | 2021-09-17 | 2022-01-21 | 昆山卡德姆新材料科技有限公司 | Phase change hardened stainless steel product and manufacturing method thereof |
| CN113957316B (en) * | 2021-09-17 | 2022-10-04 | 昆山卡德姆新材料科技有限公司 | Phase change hardened stainless steel product and manufacturing method thereof |
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