A heat-colored blue surface; the oxide layer and appearance depend on the base metal.
What it is
Heat bluing uses controlled heating to develop a blue surface color on metal. It can be used on steel and titanium, but their oxide layers and processing conditions differ. On titanium, the color comes from light interference in a surface oxide film. The maker's term does not by itself confirm whether a torch, kiln or another heating method was used.
Heat Blued vs other finishes
Heat Blued emphasizes a blue result produced by heat. Flamed describes torch-applied heat coloring, often with multicolor gradients. Anodized uses an electrochemical process rather than heating alone. Black Oxide describes a conversion finish commonly used on steel; a blue titanium finish should not automatically be classified as Black Oxide. These terms can overlap in makers' descriptions, so follow the stated process rather than color alone.
Care & aging
Follow the maker's care instructions for the specific metal and finish. Avoid abrasive polishing unless recommended, as it can alter the colored surface. The name Heat Blued alone does not establish scratch resistance or corrosion protection. Do not try to recolor an assembled fidget with heat; consult the maker.
是什么
烤蓝（Heat bluing）是通过控温加热让金属表面呈现蓝色。它可用于钢和钛，但两者的氧化层和处理条件不同。在钛上，颜色来自表面氧化膜的光干涉。仅凭品牌的这个用词，并不能确认使用的是火焰、窑炉还是其他加热方式。
烤蓝与其他表面处理
烤蓝强调由加热得到的蓝色效果。火烧色（Flamed）指用火焰加热着色，常带有多彩渐变。阳极氧化（Anodized）使用的是电化学工艺，而不只是加热。发黑（Black Oxide）是常用于钢材的转化处理；蓝色的钛表面不应自动归为发黑。这些名称在品牌描述中可能有重叠，应以注明的工艺为准，而不是只看颜色。
保养与老化
请遵循品牌针对该金属和表面处理的保养说明。除非品牌建议，否则避免研磨抛光，以免改变着色表面。仅凭“烤蓝”这个名称，并不能说明它的抗划性或防锈能力。不要尝试用加热为已组装的解压玩具重新上色，请咨询品牌。
