Aluminium Connector Terminals (ALAK)

High strength and good thermal conductivity:
Aluminium connector terminals according to customer-specific requirements

HORA eTec, your specialist in brass machining, has expanded its portfolio with drawing parts made of aluminum alloys. For this purpose, we have built up extensive know-how for an alloy that is new to us. With our worldwide production joint-ventures, we have comprehensive expertise along the entire value chain. Our existing machinery is ideally suited for machining aluminum. Process reliability and consistently high quality are a given for us. We can provide you with large machining capacities for your aluminum drawing parts – naturally with the best-cost ratio typical of HORA eTec.

Material aluminum for your electrical engineering applications

Thanks to its good electrical thermal conductivity, aluminum is increasingly attracting the attention of electrical engineering suppliers. It is already indispensable for electrical engineering applications. However, because of its reactivity with oxygen, the material places increased demands on surface treatment. Aluminum is actually silvery-white glossy, but appears matt and silver when used. The reason for this is the thin layer of aluminum oxide that is formed in a very short time during the reaction with oxygen in the normal atmosphere.

HORA eTec has now started the process-safe machining of aluminum for the production of your customer-specific machining components. We process the following main alloys:

  • 6101B T6
  • 6061 T6
  • 6082 T6
  • 7075 T6

Our focus is on the processing of aluminum alloys (AlMgSi) of the 6000 series. These belong to the hardenable aluminum alloys, i.e. those that can become stronger and harder through a special heat treatment. They have good mechanical properties, are corrosion-resistant and easy to form. They are easy to extrude and are processed into various profiles. This enables us to offer a wide range of contours, tailored to your application.

Aluminium connection technology with standard or customized versions

Together with its international production partners, HORA eTec masters the machining of aluminum at a high level. We offer you consistently high quality with a best-cost ratio that is a given for HORA eTec. Whether simple or complex: with us you are always at the right address.

We have focused on the following parts groups:

  • distribution terminals
  • feed-in terminals
  • connector rails
  • special parts

At HORA eTec you get aluminum know-how from a single source. We ensure our attractive price/performance ratio with our worldwide production partnerships. We have exclusive distribution rights for Europe and the Middle East and also have access to extensive production know-how with our production partners. Our existing machinery is also ideally suited for machining aluminum alloys. We focus on stable, process-reliable production in accordance with worldwide standards.

We are happy to prepare a suitable offer for you. Test us!

Distribution terminals

Feed-in terminals

Connector rails

Special Parts

High demands on surface treatment

Aluminum places high demands on the machining processes. HORA eTec adapts the entire process chain to the respective customer part, from the starting material through mechanical processing to surface treatment.

Due to the rapid formation of an oxide layer, the application of adhesive coatings is also complex. In this context, a so-called zincate layer is applied as an intermediate step. In order to achieve good coating quality, it is essential to “clean” the surface in advance.

Different aluminum alloys require special coordination during pre-treatment. Depending on the alloy, degree of soiling of the surface, surface structure and process technology of the coating, an appropriate pretreatment must be selected. The following mechanical or chemical pretreatment types can be used:

The mechanical pretreatment types include

  • brushes
  • grinding
  • sandblasting

The chemical processes are as follows:

  • Degreasing
  • deoxidation
  • various forms of pickling (acid pickling, alkaline pickling, zincate pickling)

Pre-treatment is followed by the zincate process. In a zincate pickle, the surface of the aluminum is activated and the natural oxide layer is removed. A thin, conductive intermediate layer is applied, which prevents reoxidation of the surface until it is applied to the subsequent coating bath. This results in optimum adhesion.

Materials science of aluminum T6 alloys

At HORA eTec, aluminum T6 alloys are solution annealed, quenched and artificially aged.

  1. Solution annealing: Annealing takes place at temperatures of approx. 510 to 540 degrees, with the alloying elements dissolving.
  2. Quenching is usually carried out immediately afterwards. The alloying elements thus remain in the solution for the time being even at room temperature, while they form precipitates during slow cooling.
  3. Artificial ageing: At temperatures from 80 to 250 degrees, the materials will be warmed up. The hardening times are usually between five and eight hours. As a result, the alloying elements precipitate faster and increase hardness and strength. The higher the temperature, the faster is the maximum strength possible for this temperature reached. However, the strength cannot be achieved arbitrarily by raising the temperature: the higher the temperature, the smaller the strength. Thus the temperature is always to be seen in connection with the hardening time.

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Ewald Voß

Product Manager Electrical Components
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Jessica Gerling

Sales / Back Office

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