再生铝熔炼里，烧损（burning loss）是每天从炉子里往外掉的铝。同一个厂的废料、同样的炉温，烧损差一个点，一年差的铝是以百吨计的。所以选熔炼炉时，「烧损多少」比「炉子多少钱」更该先问。

In secondary aluminum melting, burning loss is the aluminum quietly leaving the furnace every single day. With the same scrap and the same furnace temperature, a one-percentage-point gap in burning loss means hundreds of tons of aluminum lost over a year. So when choosing a melting furnace, "how much burning loss" deserves to be asked before "how much the furnace costs."

烧损从哪来，先看一件事：铝是怎么化的。传统的反射熔炼炉（reverberatory melting furnace），火焰直接打在料面上，料在明火里烤着化。铝这个金属，温度一高、又直接暴露在火焰和空气里，表面氧化就快——烧损就是这么堆起来的。

To understand where burning loss comes from, look first at how the aluminum is melted. In a traditional reverberatory furnace, the flame hits the scrap surface directly, and the charge melts in open fire. Aluminum oxidizes quickly when it is hot and directly exposed to flame and air — that is exactly how burning loss accumulates.

双室侧井熔炼炉（Double Chamber Side Well Melting Furnace）走的是另一条路：废料不接触火焰，而是直接沉进熔融的铝液里，被铝水「捂」着化掉。铝液是个天然的保护层，把废料和高温火焰、空气隔开，从根上减少了铝被氧化的机会。这是它烧损低的核心原因，也是行业公开的成熟原理。

The Double Chamber Side Well Melting Furnace takes a different path: the scrap never touches the flame. It is submerged directly into the molten aluminum and melts while wrapped in the metal bath. The molten aluminum acts as a natural protective layer, keeping the scrap away from hot flame and air, and cutting the chance of oxidation at the root. This is the core reason for its low burning loss, and it is an established, publicly known principle in the industry.

这里有个关键前提，也是选炉时最容易忽略的点：侧井炉要靠铝液循环泵，炉内必须先有「母液」托底。没有母液，废料沉不下去、循环转不起来，侧井的优势就发挥不出来。所以它不是「随便倒料就能开」的炉子，对连续生产、有稳定母液产线才最合适。

There is a key prerequisite that is easy to overlook when selecting a furnace: a side well furnace relies on a molten metal circulation pump, and the furnace must have a base bath of molten aluminum to work. Without that base bath, scrap cannot submerge and circulation cannot start, so the side well's advantage is lost. It is therefore not a furnace you can simply load and fire up at will — it fits best on continuous production lines with a stable molten bath.

选型时该问清三件事：一，料形对不对——细碎轻薄料、铝屑是侧井炉最擅长吃的；大块料、重料更适合别的炉型。二，有没有母液托底、是不是连续生产。三，烧损这个指标，能不能写进验收、用实测来复核，而不是停在口头承诺。

When selecting, three things should be made clear. First, whether the scrap form fits — fine, light scrap and chips are what a side well furnace handles best, while large or heavy pieces suit other furnace types. Second, whether there is a base bath and continuous production. Third, whether the burning loss figure can be written into acceptance and verified by measurement, rather than left as a verbal promise.

巨晨装备在这一块，是把「无火焰直烧」做进产品里的：双室侧井熔炼炉让废料在铝液中熔化，从源头减少氧化，烧损做到破碎铝 2% 以内、A00 铝 1.2% 以内，并且这个数可以写进合同、用连续三天的实测均值来复核，不是口头保证，是白纸黑字的验收标准。

Jucheng Equipment builds this "melting without direct flame" into the product itself: the Double Chamber Side Well Melting Furnace melts scrap inside the aluminum bath, reducing oxidation at the source, with burning loss kept within 2% for shredded scrap and within 1.2% for A00-grade aluminum. This figure can be written into the contract and verified by a three-day measured average — a black-and-white acceptance standard, not a verbal guarantee.

烧损不是设备的参数，是每天从炉子里往外掉的铝。选炉时先问清楚「料怎么进炉、烧损能不能写进合同」，比盯着买价更实在。

Burning loss is not a specification on paper — it is aluminum leaving the furnace every day. Before buying, asking clearly how the scrap enters the furnace and whether the burning loss can be written into the contract is more useful than staring at the purchase price.

A：废料直接沉进铝液里熔化，不与火焰直接接触，从源头减少了铝的

Q: Why does a Double Chamber Side Well Melting Furnace have low burning loss?

A: Scrap is submerged into the molten aluminum and melts without touching the flame, reducing oxidation at the source — the core reason for its low burning loss.

A：细碎轻薄料、铝屑最合适；大块重料更适合别的炉型，选炉要按料配炉。

Q: What kind of scrap suits a side well furnace?

A: Fine, light scrap and chips fit best; large or heavy pieces suit other furnace types. The furnace should match the material.

A：破碎铝 2% 以内、A00 铝 1.2% 以内，可作为写进合同的验收基准。

Q: What burning loss is normal?

A: Within 2% for shredded scrap and within 1.2% for A00-grade aluminum, usable as an acceptance baseline written into the contract.